BLACKCADDY

im asking if anybody out have a high rise intake or performance intake for oldsmobile (7A heads) they willing to sell......im also interested in good holley or edelbrock carb for sale too......

joe_padavano

HAHAHAHAHA. You used "performance" and "7A heads" in the same sentence!

815Cutlass1972

Black Caddy

What are your plans for your 350 you would like to build? Is this a street build. What kind of car is this going into, what is your rear end ratio, cam, and what will be the compression on your pistons. If your thinking of performance, E-brock heads will be a better choice than 7A heads jmo. There are experienced guys who will chime in, and give you good info instead of

Kino

Redog

7A as in 85 to 90 7A heads

No aftermaket manifold will port match with those heads

redoldsman

There is a big difference in 7A and 7a heads. That is why Joe is laughing so hard. If you are really talking 7A's, there is no such thing as performance. The 7a's were used on the 350 in 1972 and can be made into pretty good heads.

olds4life

hey fella's. what about 5A/5a heads. my friend has a 69 cutlass with 5A/5a heads. cant remember if its capital or lower case tho.

oldzy

I put a performance hi-rise intake on my 7A heads, and started doing wheelies. Was cool.

joe_padavano

Just to be clear, the letter is always upper case, the difference is that on the early heads the letter is smaller than the number (such as 7A) while the later heads have the letter the same size as the number (7A). Since this can be confusing, a more reliable indicator is the casting number located above the two center exhaust ports.

oldzy

Oh well, will scrap my 7A or wutever heads anyway, since I can't get anything out of them.

Redog

Which is 0142

Did they have 5A heads in 69? In 69 I thought it was just 5

442crzy

You have a PM.

67 Cutlass Freak

Maybe this reference chart will help some of you -
001.jpg

I still have this manifold for sale-
https://classicoldsmobile.com/forums...-manifold.html