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Discussion Starter · #1 ·
I am taking my heads to the machinist for a valve job and ass. after some head porting.I need to give him the install height and pressure for the valve springs(CC 980's)--does anyone have this info handy or on the top of their head--thanks for any info

Also--does anyone know the part number for ARP head bolts for our cars----(190,000's)


Thanks for any info or help

Geoff Hall
 

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Stock GM specs. 1986-1987.

Valve Closed @ Length not including dampener 78 lbs. +,- 4 lbs. at 1.727".

Valve Open @ Length not including dampener 185 lbs. +.- 10lbs. at 1.340".
 

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Discussion Starter · #3 ·
Thanks for the reply.Does anyone know how the cc 980's affects these values?

Also--any info on th arp # would be great.

Thanks,

Geoff
 
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