[CDN SS]

ARP BBC intake bolts are 1 1/4 long when used with Air Gap intake sure does not leave much thread going into head even with sealer mine seem to loosen .....what do you guys use??

I'm thinking of going 1 1/2"

 

[73guna]

I noticed that too when I installed my air gap intake.
I think I might have pulled some threads on a couple.
I'll probably go to the hardware store and get some longer, maybe allen head bolts.

 

[HP Hunter]

Longer Intake Bolts BBC

ARP BBC intake bolts are 1 1/4 long when used with Air Gap intake sure does not leave much thread going into head even with sealer mine seem to loosen .....what do you guys use??

I'm thinking of going 1 1/2"

I noticed that too when I installed my air gap intake.
I think I might have pulled some threads on a couple.
I'll probably go to the hardware store and get some longer, maybe allen head bolts.

Pass this along to everyone you know. Most of the performance intake manifolds use extra heavy mounting rails. Most of the aftermarket bolts listed in all the catalogs are always too short for these thicker than stock intakes.

If you order the ARP intake bolts for the 502 big block you will get the correct length for these manifolds. ARP's bolts measure 1.500 instead of 1.250. Part number is 1352002 black or 4352002 stainless.

Harry P. Hunter

 

[ddeennis]

they really dont loosen up. the intake gaskets seem to settle after a few heat cycles so its always a good idea to go back and retighten the intake after a few warm up's and cool downs. same with headers.

 

[CDN SS]

f you order the ARP intake bolts for the 502 big block you will get the correct length for these manifolds. ARP's bolts measure 1.500 instead of 1.250. Part number is 1352002 black or 4352002 stainless.

I saw that in there catalog to-day ...... Thanks

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they really dont loosen up. the intake gaskets seem to settle after a few heat cycles so its always a good idea to go back and retighten the intake after a few warm up's and cool downs. same with headers.

Agree mine seems to continue to loosen after retigten ? any way going to go to 1 1/2" to get better hold of the head .

Thanks for the replys