Sanity check please!

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Mar 8, 2006 | 05:12 PM

99whitews6

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From: Minnesota

Sanity check please!

408ci iron block 11.28:1 SCR
6.0L block
Eagle Forged LS1 Crank 4" Stroke
Callies LS1 Rods
Diamond Pistons(-2cc)
AFR 225cc 72 heads (unmilled for now)
Cometic Gaskets (.040 thick)
EDC custom Cam (not sure on base circle dimensions)
Comp 850-16 OE lifters

Using Comp Cams 7702-1 pushrod checker which is 6.8 base length. I had to open it Approx 10.60(comp states 0.050 increase in length for every 360 degrees turned on pushrod) turns to reach zero lash, using the procedure found here in post #2 (https://ls1tech.com/forums/showthread.php?t=465218).

So 10.6 * 0.050 = 0.53

6.8(original length) + 0.53(increase) = 7.33 + 0.065 (preload) = 7.395

So I guess I need 7.4 (stock length) pushrods huh? LOL

Anyone see any issues?

Mar 8, 2006 | 09:55 PM

daryl2cb@yahoo.com

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math looks right, I'll bump it for you and to get a second opinion. by the way what rockers curious.

Mar 9, 2006 | 04:51 AM

99whitews6

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Stock Rockers. I am hoping they will last the summer and then I plan to have a harland rebuilt/updgrade.

Mar 9, 2006 | 09:40 AM

99whitews6

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Does this seem feasible that with the AFR heads, thinner head gasket, and probably different base circle on the cam that the Pushrods would stay the same length as stock?