need a recommendation on exhaust manifolds
 

I have a new sp357/350 crate engine in my 1971 k5 4x4 blazer and its exhaust manifold time. im a stock kind of person plus i have heard complaints of headers loosing up. the SP357/350 has vortec heads. so i believe rams horns are not an option. and the new stock cast iron manifolds dont seem to give room for plugs/wires.
with that being said can anyone give me some advice? i would appreciate very much.
Dave

Re: need a recommendation on exhaust manifolds
 

Moved to pickup section for more eyeballs...

Re: need a recommendation on exhaust manifolds
 

The bolt pattern will be the same on the vortec heads as the older SBC.
I bought a set of the Summit ram horns for my '70 Blazer that I removed headers from.
They fit well and have a 2½" opening for the exhaust pipe. Plenty of room for the plug wires.

Ironically I have the same SP350/357 crate engine that I'm going to put in that Blazer.
I plan on using the Summit manifolds. You can get them plain, black or shiny.

https://www.summitracing.com/parts/sum-g9200n
Attachment 2427596

Re: need a recommendation on exhaust manifolds
 

I got a pair for my 72 and fit well.
The shinny ones:chevy::metal:

Re: need a recommendation on exhaust manifolds
 

great idea i thank you,dave




AWESOME... I Thank you sooo much!!




thank you!!!

Re: need a recommendation on exhaust manifolds
 

UPDATE: I just ordered a set for my SP357/350 and i appreciate all your help everyone