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Swapped out cam and added new Rollmaster timing chain and gear set. Was checking pushrod length and noticed at TDC the lifter on #1 is about .050 higher than it is after rotating the crank until I feel the lowest point of lift on the intake lifter… is this normal? Here is a pic of my cam/crank gear alignment…
Last edited by TopBeer; Jan 24, 2023 at 10:50 PM.
Reason: Poor title
On a Gen 1 small block , #6 cylinder is at TDC firing position when the timing marks are aligned as in your pic .
Makes sense… this is an LS3 and #6 was the one that was full deflection down with the timing marks aligned on the compression stroke and took my measurements. Rotated crank until I had lowest point on intake cylinder #1 and it matched the measurement for #6 so assume I am good.
Engine TDC
