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Old 09-26-2012, 12:39 PM   #1
crossy
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pushrod length on 90 engine with early heads??

I'm trying to figure out what dictates the length of the pushrod in a 350 engine. The engine is nearly stock. I am NOT using this particular engine I'm building in a TBI truck , it's going in a 79 camaro with typical intake & carb. I don't have the ones that came out of the engine any longer as I purchased a rebuildable shortblock. The heads I just got are earlier version #882 heads(NON- TBI) .I know I don't need 'over' pushrods for a cam that is only .443/.465 lift, but when getting ready to order pushrods I saw STOCK pushrods listed for a 1990 TBI engine that were 7.200 long and 7.800 long. So my question is should the pushrods be the 'longer' 7.8's that were standard in the 79 style engine. I THINK the shorter pushrods listed from 87-up are just for engines with factory roller lifters not all 87-up. ANYWAY if anyone knows for sure which ones please let me know. late 90 tbi block with early heads and NON-roller cam. . thanx, crossy
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Old 09-26-2012, 07:32 PM   #2
king-918
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Re: pushrod length on 90 engine with early heads??

http://m.summitracing.com/search/Pro...hecking-Tools/
Start by buying the on closest to stock length and find out for sure 0 guess work.
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Old 09-26-2012, 09:15 PM   #3
chebyshortbox65
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Re: pushrod length on 90 engine with early heads??

I belive roller cam use diffrent push rods and the tbi motors from 86-95 could have roller cam or traditional but you can install a roller cam in those years real easier if it dident come with them
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Old 09-27-2012, 08:38 AM   #4
crossy
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Re: pushrod length on 90 engine with early heads??

Quote:
Originally Posted by king-918 View Post
http://m.summitracing.com/search/Pro...hecking-Tools/
Start by buying the on closest to stock length and find out for sure 0 guess work.
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THAT'S WHAT I'M ASKING- THE STOCK LENGTH-I explained i don't even have the ones that came with the TBI engine- not trying to put a roller cam in either.
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81 SWB GMC POS finally gone
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