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Need some help with Cam/pushrods

Old 09-20-2012, 10:16 AM
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Default Need some help with Cam/pushrods

I am doing a cam swap and I bought a custom ground cam, the cam card that came with it says 226/229 @050 .575/.578 112lsa lift and to run 7.450 pushrods.

However, I took the cam to my machine shop and they used Cam Analyzer. They say it's a 228/230 .530/.530 112lsa

The results are in the picture attached. Can someone please tell me whether I need to use 7.400 or 7.450? I have bought both and really wanted to get my motor back together today

The heads are ported and polished 241s with dual springs and 2.02 valves

Old 09-20-2012, 10:31 AM
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wow that is a weird cam
HUGE .006 #'s 307/310 (bigger than my 238/246 cam)
228/230 112-2
Lift is .564/.562 with a 1.7 rocker, not the .530 you posted
I dunno, what combo was it spec'd for? that is just a ton of overlap
Old 09-20-2012, 10:50 AM
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Whoever ground that cam dropped the ball big time.

They ground in 2 degrees of retard which is seriously affecting the IVC event and EVO event. That cam is all kinds of *** backwards.
Old 09-20-2012, 10:59 AM
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Originally Posted by Grr
wow that is a weird cam
HUGE .006 #'s 307/310 (bigger than my 238/246 cam)
228/230 112-2
Lift is .564/.562 with a 1.7 rocker, not the .530 you posted
I dunno, what combo was it spec'd for? that is just a ton of overlap
ok, its weird cam, and I am not sure I will like it ...but can someone please say which pushrods I should use? This is my first rodeo and I am at a stand still..
Old 09-20-2012, 11:58 AM
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dont know what the base circle is, but I would use 7.400 and check your preload, i bet its close enough to correct.
Old 09-21-2012, 03:38 PM
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Thanks sir!


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