Last minute check before new engine gets together...
11-14-2005, 01:58 AM
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Last minute check before new engine gets together... Ok, I have gone through the forged 347 thats been sitting on my lanai for 6months now. Checked all the bearing clearances etc.
Specs:
LS6 Block, stock crank, Comp Star Rods, APR bolts, Diamond -2cc v/r flattop pistons, Cloyes Hexadjust timing set, EDC Cam 231/242 .637/.622 114*LSA, Morel lifters, new GM lifter cups, Cometic .040" gaskets, ARP Head studs (being ordered instead of the ARP Bolts I have), ET Performance 225 55cc chamber 11* Heads, Stock rockers w/ pedestals, LS6 Intake for now (FAST/ NW 90/90 coming soon), Kooks 1 7/8" x 3" LTs.
About the only question I have remaining is the pushrod length. I have an adjustable p/r checker, but havent got a clear answer on how to check the length. Since the lifters have sat, bled down since new. I did the swipe test before, using stock heads, put the a/prod in, opened it up to zero lash, TDC #1, and then began adjusting, came out to 7.400". Just need to recheck with the ETP Heads once they come in. Is this method good or no?
Charlie
Specs:
LS6 Block, stock crank, Comp Star Rods, APR bolts, Diamond -2cc v/r flattop pistons, Cloyes Hexadjust timing set, EDC Cam 231/242 .637/.622 114*LSA, Morel lifters, new GM lifter cups, Cometic .040" gaskets, ARP Head studs (being ordered instead of the ARP Bolts I have), ET Performance 225 55cc chamber 11* Heads, Stock rockers w/ pedestals, LS6 Intake for now (FAST/ NW 90/90 coming soon), Kooks 1 7/8" x 3" LTs.
About the only question I have remaining is the pushrod length. I have an adjustable p/r checker, but havent got a clear answer on how to check the length. Since the lifters have sat, bled down since new. I did the swipe test before, using stock heads, put the a/prod in, opened it up to zero lash, TDC #1, and then began adjusting, came out to 7.400". Just need to recheck with the ETP Heads once they come in. Is this method good or no?
Charlie
11-14-2005, 02:10 AM
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It depends on the preload that the lifter requires. If it is next to nothing like comp r's then a quarter turn from 0 lash to 22 ft lb is good. If they are like stock replacements then anywhere from 1.5-2 turn to 22 ft lb is typical. Adjust the pushrod till you get the right amount of preload for the 22 reading.