Intake bolt length

[TURNA]

Anyone know the Intake bolt lengths for a small block Olds with an A4 or Edelbrock performer intake?

Thanks

 

[69hurstolds]

Hang on....I'm on it.

 

[69hurstolds]

Factory bolts per the parts books:

3/8"-16 x 1.25" for what it shows 4 of them. P/N 9420462 or 9440954. (Same can be used for exhaust manifold).

Also, there are some of the longer ones at 2" with p/n 9423490, and the ones with studs on them are 22505552 and they are 2" long. They just show "as required"

Basically, for the "short holes" use 1.25" bolts, and the thicker parts use 2".

BTW, in case you're wondering, the distributor hold down bolt is 3/8"-16 X 1.5".

 

[TURNA]

thank you

 

[TURNA]

Well for those that need to know

The Performer need longer than stock bolts!!!

%&^%^^%!!!!!

 

[JAMCAR223]

Factory bolts per the parts books:

3/8"-16 x 1.25" for what it shows 4 of them. P/N 9420462 or 9440954. (Same can be used for exhaust manifold).

Also, there are some of the longer ones at 2" with p/n 9423490, and the ones with studs on them are 22505552 and they are 2" long. They just show "as required"

Basically, for the "short holes" use 1.25" bolts, and the thicker parts use 2".

BTW, in case you're wondering, the distributor hold down bolt is 3/8"-16 X 1.5".

Awesome source of knowledge, as usual 👍

 

[JAMCAR223]

%&^%^^%!!!!!

Translation please??

 

[Texas82GP]

We need a progress pic on that tame cruiser 403.

 

[TURNA]

Its coming...................

 

[69hurstolds]

Well for those that need to know

The Performer need longer than stock bolts!!!

%&^%^^%!!!!!

Did the E-brock instructions mention that? They usually will recommend something if it's different than stock. Maybe you didn't get instructions, or if like me, hardly ever read them. I last installed an E-brock Performer 25 years ago on a 455 and I honestly don't recall the bolts I used.

They should work on the A4 intake, though. Just put that one on, or get longer bolts. 🙂