Hello From Wichita

Richard2112

New Member
Hey folks..Been registered here for a while and reading 'till my eyes bleed. Building a 383 for a truck with a hydraulic cam. Having trouble getting measurement for pushrods with hydraulic lifter bleed down
 
welcome too the forums,
these links may help, keep in mind a fully depressed push rod seat will make the push rod effective length only about .050 shorter when making measurements, get the rocker geometry correct and youll have near zero issues
yes I use BOTH the push rod checker tools to get the quick check on length,
and the adjustable length push-rods and a marker too method verify the correct length,
with a cross check by looking at the wear/sweep and location, on the valve tip
valvetip.jpg

if your within .050 away youll generally be ok, if your within, .030 or less that is ideal,
at some point your effectively "SPLITTING HAIRS" and yes ideal length is preferred
if you have adjustable length push rods you can play with the length to find ,
what gives you the best and most consistent and ideally narrow and preferably centered,valve tip wear pattern
that way your not guessing , you see what minor changes do to the wear pattern
get as close as you can, and it does not mater much if its a bit over or under length as long as its reasonable close


hydrauliclifter.jpg


15-Exploded.jpg


http://garage.grumpysperformance.co...-pushrods-and-check-info-you-might-need.5931/

http://garage.grumpysperformance.com/index.php?threads/pushrod-length-tolerance.15189/

http://garage.grumpysperformance.co...rdering-correct-custom-length-pushrods.14241/

http://garage.grumpysperformance.com/index.php?threads/stock-gm-push-rod-length.3844/

http://garage.grumpysperformance.com/index.php?threads/valve-spring-installation-questions.12833/

http://garage.grumpysperformance.com/index.php?threads/rocker-push-rod-wear-issues.9815/#post-54088

http://garage.grumpysperformance.co...rect-custom-length-pushrods.14241/#post-72353

http://garage.grumpysperformance.com/index.php?threads/correctly-adjusting-valves.196/

Proform Pushrod Length Checkers 66789 SBC 3/8" rocker studs

Proform Pushrod Length Checkers 66790 SBC 7/16" rocker studs


tappet%20adjustment_zps8vi9yxmu.jpg
 
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