2.5L Pushrods

Real tech discussion on design, fabrication, testing, development of custom or adapted parts for Pontiac Fieros. Not questions about the power a CAI will give.

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wolken
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Joined: Mon Mar 27, 2006 2:56 pm

2.5L Pushrods

Post by wolken »

Did the length of the pushrods change from 84 to 86? I just installed an 86 head on my 84 block head and they click really bad so I would guess yes. Anyone have any information on that?

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Wolken
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Shaun41178(2)
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Post by Shaun41178(2) »

I beleive they are the same because I don't think they went to a roller cam untill 87 year.

Did you even bother to check to see if the lengths were the same when you swapped the heads?
FieroPhrek working on that ls4 swap for 20 years and counting now. 20 years!!!!! LOL


BEWARE OF BEN PHELPS AND WOT-TECH MOTORSPORTS. YOU HAVE BEEN WARNED. WORSE THAN MILZY IMO
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wolken
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Joined: Mon Mar 27, 2006 2:56 pm

couldnt

Post by wolken »

I didnt have the rods from the other head so that wasnt an option. I just assume that they were different because you dont adjust the lash on those valves.
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Kohburn
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Post by Kohburn »

easy way would be to see if they are the same part number online at gmpartsdirect
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wolken
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Post by wolken »

Thanks that helped, the part number changed for that pushrod between 84 and 85
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befarrer
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Post by befarrer »

They changed to a roller cam in mid 85, or early 85.
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