Apr 21, 2010 · provide effective valve train adjustment, and the valvetrain will start. making noise. The distance the plunger is compressed into the. lifter body when the lifter is at the low point in its bore is referred to. as “lifter preload.”. This is the “valve lash” or. “valve adjustment” on a hydraulic lifter. 1. Rotate engine until exhaust valve begins to open. This will ensure the intake lifter is on the base circle of the cam. 2. Rotate push rod and tighten rocker arm until you feel it start to drag and then go 1/2 turn more. 3. Then rotate engine until intake valve is completely open and repeat step 2 for the exhaust valve.Apr 9, 2022 ... Comments4 ; Small Block Chevy valve adjustment made easy. Myvintageiron7512 · 599K views ; Hydraulic valve adjustment made easy - Your Engine Guy.253 posts · Joined 2011. #3 · Sep 11, 2011. After you adjust a valve then turn the motor over, some of the adjusted valves will be pushing down on their lifter. Since there is zero oil pressure the force of the valve spring will collapse the lifter and bleed the oil out. Then as you rotate it over again and that particular lifter is on the ...816 posts · Joined 2008. #1 · Jan 16, 2010. Just had a 350 rebuilt basically stock other than a 260 cam. Has stock style rockers and nuts to adjust with. Flat tappet hyd cam. The problem is the valves keep getting loose. My builder ran the motor for a hour to break it in good and made sure the cam was ok. He said they never came loose during ...A Quick How to for Adjusting your Small block 350 Valves into spec! This information can be used for other Push rod/ Hydraulic tappet lifter setups too!Nov 19, 2012 · Rather than spinning the pushrod and attempting to get the correct 'feel', hold the pushrod between two fingers and lift the pushrod up and down while slowly tightening the adjustment nut. When you reach the point where there is no more up and down movement you will be at 0 lash. Tighten an additional 1/4 to 1/2 turn. Posted 3/19/2010 22:49 (#1127432 - in reply to #1127390) Subject: Re: small block chevy issue - adjusting valves. SE Nebraska. It will run rough if the valves are set too tight. To adjust with hydraulic lifters turn the rockers down until zero lash which means zero clearence between pushrod and rocker.for Chevy 262-400c.i. and 396-454c.i. engines. 9. ... Adjust the valves on each cylinder in this . 4 COMP Cams® 3406 Democrat Rd. Memphis, TN 38118 Phone: (901) 795-2400 Fax: (901) 366-1807 www.compcams.com Part #145 Revised 5/4/12 manner until all valves are adjusted. If the engine has nonadjustable rocker arms, a lifterComp Cams XE262H-10 - Duration @ 0.05 is 218 In and 224 Ex, Lobe separation is 110, Gross valve lift is 0.462 In adn 0.469 Ex GM distributor with Accel HEI Super Coil Freshly rebuilt Turbo 350 with mild shift kit and stock converter Lower end only had a couple thousand miles on after last rebuild as previous owner didn't find it fast …Oct 19, 2018 · Here’s a quick video on how to properly adjust your valve lash and tightening rocker studs. this was done on a 1975 small block Chevy with hydraulic lifters. Quick 4 Steps! January 11, 2024 by Neelam Khan. Contents. 4 Easy Steps on How to Adjust 350 Chevy Valves! Valve Adjustment Procedure Step By Step Guide. 1. Removing Valve Covers and Spark Plugs. 2. Turning the Engine. 3. Finalizing the Valve Adjustment Process. 4. Instructions & Precautions. How to know if Valves Need Adjustment on A 350 Chevy?Apr 10, 2021 · How to adjust Chevy Small Block hydraulic cam valves the right and easy way.valve lash adjustment on a chevy 307. comp rockers https://www.amazon.com/gp/pro... bigbadbowtie. 1. Remove the valve covers, and pick a cylinder you are going to set the preload on. 2. Hand rotate the engine in its normal direction of rotation and watch the exhaust valve on that particular cylinder. When the exhaust valve begins to open, stop and adjust that cylinder’s intake rocker arm.simple instructions for setting valve lash solid lifters sbc no cam specs. When the exhaust valve starts to open, you adjust the intake valve on that cylinder. After intake valve opens completely and is closing, adjust the exhaust valve on that cylinder. To adjust valves insert the feeler gauge between the rocker and valve and tighten until ... This instructional video describes two different methods of adjusting valves on engines with solid lift camshafts. The video also briefly talks about firing ... Bottom line: the top of the plunger in a hydraulic lifter (the cup the pushrod rides in) will reach the top of the lifter when all lash is removed even with the engine off. That said, it is just as easy, more safe and much cleaner to adjust the valves with the engine off whether it is a fresh rebuild or a previously run engine. Team Chevelle ...Here is a detailed guide on how to adjust valves on a 350 Chevy: Take off the valve covers before carrying out the valve adjustment. Once the cover is off, choose a cylinder you are going to work on. To adjust the intake valve, use your hands to rotate the engine. At the same time, keep your eyes on the exhaust valve of the cylinder.By end of August and into September, the price of lumber could settle in a range between $350-$450 per thousand board feet, an analyst told Insider. Jump to Lumber futures are slid...Sep 10, 2023 · Next morning, come out and HAND rotate the engine, and bring it back to the two valves you set hot, by E-O, I-C. Check the COLD settings. Lets say hot, exhaust you set, .030, next morning, cold, .024. You now know what the Create A Spec COLD setting. Set ALL the intakes, cold, via E-O, I-C, done. Start with # 1 and go through the firing order and do all of the intakes, then go back to #1 and do all the exhausts in order. Two turns and you are done. If you want to check to see if your method was ok, turn the engine until the #1 exhaust lifter starts to move and then see how much preload you have on the intake valve.Take all the play out of the pushrods and adjust. We set all hydraulics 1/4 turn down (poly-locks) into the plunger. Next, turn the crank 90 degrees in the direction of rotation (clockwise) and adjust the valves on the next cylinder in the firing order, in this case that would be #8.1990 Chevy 350 v-8, K1500 I'm trying to adjust "pre-load" the valves/lifters. ... How to adjust valves on a chevy small block engine be sure to double click on the U-Tube video links at the bottom of the page to get a better idea of adjusting the lifters. I guess there are about as many ways or procedures of adjusting chevy lifters as there …As part of the reassembly of the Small Block 400 , you will need to adjust the hydraulic valves. A quick and easy way to get it done.If the headlights on your Chevy Trailblazer are out of alignment, you will find it difficult (or impossible, depending on how badly out of alignment they are) to see at night or wh...How I always tell if an engine is in proper time by valves is. 1) remove the spark plugs. 2) mark number 1 cylinder on dizzy body and remove cap. 3) place a properly fitting socket and ratchet on the crank pulley bolt. 4) rotate the pulley clockwise while watching the valves.66 chevelle 350 4 speed 3.55 12 bolt and a newly added 142 wieand blower. Reactions: JFS65. ... As the exhaust valve is starting to open adjust the intake, as the intake is closing, adjust the exhaust. ... A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. Come join the discussion about restorations, builds, …Car shoppers, take note: The Chevy Volt has received a $4,400 price cut amid low sales and a new model. By clicking "TRY IT", I agree to receive newsletters and promotions from Mon...4. Go 1/4 more turn and move on to then next valve. 5. Do this for all 8 valves then go back and turn them ALL down 1/4 more turn each. 6. Do this one more time so that you have a full 3/4 turn of pre-load on the lifters. Sometimes, 5/8 is better than 3/4 so only go an eighth of a turn on the last go-around.Unfortunately, I don't have cam specs, as I bought my car turnkey and the seller didn't have the cam card. I'm just curious what a "typical" range should be for valve lash on a big block Chevy. (Iron block, aluminum heads). I checked, and the lash was .036 COLD, which according to my math is about .042 hot. That seems loose no matter what …Dec 10, 2023 · Systemically reassemble the engine once all valves are adjusted following the correct sequence. If the valve adjustment was done correctly, there should be minimal need for future adjustments, contributing to the longevity of your Chevy 350 engine. Hydraulic Valve Adjustment Made Easy. Here’s an easy Hydraulic Valve adjustment method: 1. After adjusting valves on your small-block Chevy, run the engine. It breaks the cam – and then readjusts while the engine is still running. After the break-in, when the engine is idling, loosen the rocker till you hear a click. … the MOST SIMPLE way to adjust valves on the SBC/350 chevy or any other hydraulic lifter engine So many opinions on the Net on how to adjust valve lash on a 350 with hydraulic lifters. After fitting the heads push rods I started the process of adjusting the lash. What I did was bring engine to No 1 TDC and adjust the appropriate valves, rotate engine 360 for No 6 and adjust the appropriate valves. The technique I used was the up and …Aug 23, 2022 ... well today we are adjusting valves on the 383 stroker small block Chevy. hopefully we fix the valve float issue and get it to run better ...Posted 3/19/2010 22:49 (#1127432 - in reply to #1127390) Subject: Re: small block chevy issue - adjusting valves. SE Nebraska. It will run rough if the valves are set too tight. To adjust with hydraulic lifters turn the rockers down until zero lash which means zero clearence between pushrod and rocker.Nov 9, 2020 · This is the procedure on how to set valve lash on a Chevy 350 engine. This procedure is similar to most Chevy small block engines and could be used for gener... To adjust the exhaust valves a similar procedure is used. Turn the engine over until the intake pushrod moves all the way up. Rotate just past maximum lift, where the intake will begin to close.Jan 12, 2021 · Conversely, spin the engine over until the intake valve opens and then starts to close, and the exhaust valve is sure to be closed at that point. Smith explains that since you always want to adjust a valve that is fully closed with the lifter on the base circle of the camshaft, an easy way to remember that is “EOIC” or exhaust open, intake ... T's Garage. 384 subscribers. Subscribed. 600. 76K views 3 years ago. This is the procedure on how to set valve lash on a Chevy 350 engine. This procedure is similar …The firing order of all small-block Chevy engines, including the 350, is 1-8-4-3-6-5-7-2. The rotor under the distributor turns in a clockwise direction. Chevy small-block engines ...Then remove the tape one at a time and adjust that valve. Replace the tape and then move to the next. I see no reason why this won't controls some of the mess. 3. X-77 keith. 1969 x-77 Z/28 orange/ white stripes, named by my daughter "Clementine ", M-22 close ratio, 4:10 12 bolt, CE 302.Compensating for a Cold Engine When Adjusting Mechanical Lifter Valve Lash. By Engine Builder. Published: Aug 19, 2011. Engine respond to the actual movement of the valves. Since the valve cannot move until all the running clearance (valve lash) has been taken up, the amount of valve lash you use affects the engine’s performance. The …Replacing speakers in a vehicle is one of the simplest and most cost-effective ways of improving the sound in your car. The Chevrolet Colorado is a good candidate for speaker repla...Firstly, make sure your engine is cold, and the rocker arms are free from any oil. Secondly, ensure that you have the correct tools, including a feeler gauge, a wrench, and a screwdriver. Lastly, you need to know the firing order of your engine. For a 350 Chevy engine, the firing order is 1-8-4-3-6-5-7-2. Now, let’s get to the valve ...phel69. 1148 posts · Joined 2000. #6 · Jan 13, 2007. DON'T SPIN the pushrods. it is the biggest mistake made when adjusting valves. Wiggle the pushrod UP and DOWNwhile taking up slack in the adjustment. When the up/down slop is gone, you are at 0 lash. Then go 1/4 to 3/4 of a turn more.Unfortunately, I don't have cam specs, as I bought my car turnkey and the seller didn't have the cam card. I'm just curious what a "typical" range should be for valve lash on a big block Chevy. (Iron block, aluminum heads). I checked, and the lash was .036 COLD, which according to my math is about .042 hot. That seems loose no matter what …This instructional video describes two different methods of adjusting valves on engines with solid lift camshafts. The video also briefly talks about firing ...Installing the flat tappet lifters on a small block chevy 350 and then setting the valve lash while explaining the process and talking too much.The original 3782461 "double hump" heads on my 1962 Chevrolet 327/300 still has the original pressed in rocker studs and GM lock nuts. In 1968, the original 327 engine in my 1962 Bel Air was bored .030" os and rebuilt by the original owner. After about 30,000 miles, it has no valve train noise. The camshaft that was installed was a GM …Feb 17, 2006 · Turn the engine till its on the compression stroke (both valves closed) then tighten down the rocker just until the plunger on the lifter starts to sink. repeat that for all of the cylinders making sure its on the compression stroke. Or, you could do it the messy way and run the engine and losen up the rocker till it starts clacking then tighen ... To adjust lifters on a chevy 350, use a feeler gauge to measure the valve clearance and adjust as needed. We will explain the step-by-step process to help you …provide effective valve train adjustment, and the valvetrain will start. making noise. The distance the plunger is compressed into the. lifter body when the lifter is at the low point in its bore is referred to. as “lifter preload.”. This is the “valve lash” or. “valve adjustment” on a hydraulic lifter.In this video, Ryan shows you how to install push rods and rocker arms and how to set valve lash on a Chevy 350. He rebuilt this small block Chevy 350 which ...3. Loosen an adjuster nut until the lifter clacks. Go a bit more so that the lifter can fill itself with oil. SLOWLY turn the nut back down until the clack diminishes then stops. 4. Go 1/4 more turn and move on to then next valve. 5. Do this for all 8 valves then go back and turn them ALL down 1/4 more turn each.Learn how to adjust valves on a BBC/SBC with hydraulic cam the easy way. ALWAYS consult your lifter manufacture for final pre-load after zero lash is achiev...253 posts · Joined 2011. #3 · Sep 11, 2011. After you adjust a valve then turn the motor over, some of the adjusted valves will be pushing down on their lifter. Since there is zero oil pressure the force of the valve spring will collapse the lifter and bleed the oil out. Then as you rotate it over again and that particular lifter is on the ...Rather than spinning the pushrod and attempting to get the correct 'feel', hold the pushrod between two fingers and lift the pushrod up and down while slowly tightening the adjustment nut. When you reach the point where there is no more up and down movement you will be at 0 lash. Tighten an additional 1/4 to 1/2 turn.816 posts · Joined 2008. #1 · Jan 16, 2010. Just had a 350 rebuilt basically stock other than a 260 cam. Has stock style rockers and nuts to adjust with. Flat tappet hyd cam. The problem is the valves keep getting loose. My builder ran the motor for a hour to break it in good and made sure the cam was ok. He said they never came loose during ...816 posts · Joined 2008. #1 · Jan 16, 2010. Just had a 350 rebuilt basically stock other than a 260 cam. Has stock style rockers and nuts to adjust with. Flat tappet hyd cam. The problem is the valves keep getting loose. My builder ran the motor for a hour to break it in good and made sure the cam was ok. He said they never came loose during ...Remove the engine cover from the passenger compartment for access. Remove the rocker arm covers. For details, please refer to Section 3 of this manual. To prepare the engine for valve adjustment, rotate the crankshaft until the mark on the damper pulley aligns with the 0° mark on the timing plate and the No. 1 cylinder is on the …May 9, 2022 ... Comments48 · Rocker Arm/Hydraulic Lifter Adjustment · Adjusting valve lash with bucket lifters · *EASY* How To Adjust SBC Valve Lash using EOIC...Bottom line: the top of the plunger in a hydraulic lifter (the cup the pushrod rides in) will reach the top of the lifter when all lash is removed even with the engine off. That said, it is just as easy, more safe and much cleaner to adjust the valves with the engine off whether it is a fresh rebuild or a previously run engine. Team Chevelle ... Step 2. Remove both of the valve covers. A single valve cover is located on either side of the intake manifold. Each valve cover is attached to its cylinder head with a total of four bolts. Two of the bolts are located on the top of the cover, while the remaining two are on the bottom. Remove the four bolts with a wrench, then lift the valve ... 1024 posts · Joined 2014. #14 · Jul 1, 2016. The easiest way to set hyd valve lash is by using the EOIC method. As the exhaust valve is starting to open adjust the intake, as the intake is closing, adjust the exhaust. No need to even look at the TDC marks on the balancer because it doesn't matter.Showing how to adjust the valve lash on a chevy 350 with hydraulic flat tappet lifters.97 Chevy: Swapped a 98 5.7 Vortec..4x4..hood..harness. Swapped a '98 5.7 Vortec into a '97 Chevy 1/2 ton 4x4 that originally came with a 4.3 Vortec. Changed everything under the hood to match … read more. Tim's Auto Repair. mechanic.1024 posts · Joined 2014. #14 · Jul 1, 2016. The easiest way to set hyd valve lash is by using the EOIC method. As the exhaust valve is starting to open adjust the intake, as the intake is closing, adjust the exhaust. No need to even look at the TDC marks on the balancer because it doesn't matter.Valve Adjustment With Engine RUNNING! - 1995 Chevy GMC TBIIn this video I try to cure a ticking or clacking noise I've been getting with this engine since th...The 1989 Chevrolet 350 small-block engine is a V8 that produced a peak power of 240 horsepower and 340 foot-pounds of torque in its most common installation trim in the Chevrolet C...Sep 26, 2022 · Adjusting Valves On A Hydraulic Camshaft. Instructions for adjusting the valves with an engine using either a hydraulic or solid camshaft is the same procedure (for example, Chevy 350, and others), as far as when we perform the adjustment. Mar 4, 2012 · First, pull your sparkplugs out so there's no cylinder pressure as you rotate the engine around. Second, put a breaker bar on the bolt holding your harmonic balancer to your crank and turn the engine clockwise until the timing line or mark on the balancer is at 0 (zero) on your timing tab. Feb 5, 2020 · I need help with how to adjust the valves on a 350 Chevy. I tried adjusting them, the plug wires are on the right way (I checked),but the engine keeps dying because it idles too roughly. There has to be a simple solution. engine warm and running, loosen the nut till that rocker/lifter rattles, tighten until the noise stops, go a half turn by 1/ ... Blood flows out of your heart and into a large blood vessel called the aorta. The aortic valve separates the heart and aorta. The aortic valve opens so blood can flow out. It then ...I need help with how to adjust the valves on a 350 Chevy. I tried adjusting them, the plug wires are on the right way (I checked),but the engine keeps dying because it idles too roughly. There has to be a simple solution. engine warm and running, loosen the nut till that rocker/lifter rattles, tighten until the noise stops, go a half turn by 1/ ...[ January 25, 2024 ] Reviving Lil’ Joe, A 1976 Chevy C10 With The 350 That Shouldn’t Be Builds and Examples [ January 23, 2024 ] How To Wire Headlights, Turn Signals, Brake Lights, Parking Lights, Hazards, Horn How To & DIY [ January 23, 2024 ] Barn Tour: A Pontiac from EVERY Decade & RARE International Trucks Hot Rod LifestyleMay 17, 2011 · Start by making sure lifter is on low step of camshaft- valve completely closed. Tighten nut on rocker arm while spinning pushrods with 2 fingers. When pushrods stops spinning while tightening rocker arm nut go ahead and tighten down another 1/2 to 3/4 turns. Vale is adjusted. Continue on and do all the valves this way. Oct 19, 2018 ... Here's a quick video on how to properly adjust your valve lash and tightening rocker studs. this was done on a 1975 small block Chevy with ...phel69. 1148 posts · Joined 2000. #6 · Jan 13, 2007. DON'T SPIN the pushrods. it is the biggest mistake made when adjusting valves. Wiggle the pushrod UP and DOWNwhile taking up slack in the adjustment. When the up/down slop is gone, you are at 0 lash. Then go 1/4 to 3/4 of a turn more.Valve Adjustment Procedure for Small and Big Block Chevy. After the engine has been thoroughly warmed up the valves may be adjusted with the engine shut of as follows: …Systemically reassemble the engine once all valves are adjusted following the correct sequence. If the valve adjustment was done correctly, there should be minimal need for future adjustments, contributing to the longevity of your Chevy 350 engine. Hydraulic Valve Adjustment Made Easy. Here’s an easy Hydraulic Valve adjustment method: 1.Advertisement The flame of gas range burners should be steady and slightly rounded, with a light-blue tip. The flame should be quiet and should respond to adjustments made at the c...Best Answer. With the engine warmed up but turned off, remove the valve covers. Start the engine and loosen the rocker arm nuts until they make a knocking sound. Slowly tighten the rocker arm nuts ...How to adjust Small Block Chevy Valves - YouTube. Rusty Glovebox. 12.8K subscribers. Subscribed. 784. 115K views 6 years ago. As part of the reassembly of the …Robert Dana teaches step by step instructions how to adjust valves with Hydraulic lifters on a small block. Milwaukee Electric Tools MLW48-22-9214 Pry bar Se...ready to start valve adjustment. B. Turn the engine over until the No. 1 cylinder is at TDC firing position (Both #1 lifters are down in the lifter bores and cylinder #6 are up). At this point, adjust exhaust valves on cylinder numbers 1, 3, 4, 8 and intake valves on cylinder numbers 1, 2, 5, 7 to zero clearance between rocker arm and valve tip.
I like to start with the Number One cylinder and run down each bank. I start by bumping the engine over until the exhaust valve just opens (EO). This puts the intake lifter on the base circle of the lobe so we can set the intake preload. With the intake preload set, now bump the engine until the intake valve is halfway closed (IC).. Miscarriage paperwork from doctor
If your fast you can do it before the oil gets on the exhaust.. You can also get a piece of card board and cut it to length to fit in head on valve spring side, make it about a foot tall. then start it up and adjust valves ( a little less messy) 64 Chevelle Malibu retromod 327 turbo2004r 12 bolt with 355 gears.This is different from flat-faced lifters which perform best at zero 0 to ½ turn of preload. Tests at Crane R&D have consistently shown best performance (for hydraulic roller cam valve trains) occurs with the preload set at 1 ¼ - 1 ½ turns down from zero lash. This adjustment will maximize power throughout the RPM range and increase the ...This instructional video describes two different methods of adjusting valves on engines with solid lift camshafts. The video also briefly talks about firing ...Here’s a quick video on how to properly adjust your valve lash and tightening rocker studs. this was done on a 1975 small block Chevy with hydraulic lifters.The original 3782461 "double hump" heads on my 1962 Chevrolet 327/300 still has the original pressed in rocker studs and GM lock nuts. In 1968, the original 327 engine in my 1962 Bel Air was bored .030" os and rebuilt by the original owner. After about 30,000 miles, it has no valve train noise. The camshaft that was installed was a GM …*****Get your klowny1969 Shirts and Apparel here:https://teespring.com/stores/klowny1969Check out my channel for the best automotive videos on youtube!! a...4. Go 1/4 more turn and move on to then next valve. 5. Do this for all 8 valves then go back and turn them ALL down 1/4 more turn each. 6. Do this one more time so that you have a full 3/4 turn of pre-load on the lifters. Sometimes, 5/8 is better than 3/4 so only go an eighth of a turn on the last go-around.*****Get your klowny1969 Shirts and Apparel here:https://teespring.com/stores/klowny1969Check out my channel for the best automotive videos on youtube!! a...Follow these steps to set Chevy 350 Timing Marks: Warm Up the Engine: Start the engine and let it run until it reaches its normal operating temperature. Turn Off the Engine: Shut off the engine and disconnect the vacuum advance hose from the distributor, if applicable. Plug the hose to prevent air leaks.It’s official: a fully electric Chevy Corvette is coming — with new battery technology to boost its range, acceleration and efficiency. When it arrives, the battery-electric sports...This could be because of wear issues, wrong oil, high mileage etc.etc. Lets set your rockers. Note we will NOT be running the motor for the initial setup. (1) Pull the rocker covers. (2) Remove Sparkplugs. (3) Rotate motor in normal direction to TDC (not backwards at anytime)Valves. The original Chevy 265-ci small-block began life actuating diminutive 1.72- and 1.50-inch intake and exhaust valves. In the evolution of the small-block, now displacing as much as 454 inches out of a standard deck height block, these big-bore small-blocks can now accommodate up to impressive 2.150- and 1.625-inch valve sizes.I show a simple way to adjust you valves, or alteast how i do itLoosen the adjusting nut of one valve until you hear it "clicking". Slowly re-tighten the adjusting nut until the clicking stops. Tighten an additional 1/4 to 1/2 turn. …Posted 3/19/2010 22:49 (#1127432 - in reply to #1127390) Subject: Re: small block chevy issue - adjusting valves. SE Nebraska. It will run rough if the valves are set too tight. To adjust with hydraulic lifters turn the rockers down until zero lash which means zero clearence between pushrod and rocker.The torque specifications for Chevrolet 350 cubic inch V8 head bolts are 65 foot-pounds per bolt if securing the stock cast iron head. Aftermarket aluminium heads have unique torqu...66 chevelle 350 4 speed 3.55 12 bolt and a newly added 142 wieand blower. Reactions: JFS65. ... As the exhaust valve is starting to open adjust the intake, as the intake is closing, adjust the exhaust. ... A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. Come join the discussion about restorations, builds, …Wherever you choose to start, you aren't going to kill the valvetrain on break-in over just a few thousandths. Break it in, check and set 1 pair hot, let it cool overnight, check same pair cold, and you now have "your combo's" correct cold lash to match the "hot" cam card spec. Tune it later by going tighter or looser from this spec..