Are all the Exhaust Manifolds the same? Will a 305 Exhaust Manifold fit on a 350? Vice versa?
Are they all the same from 305 (carb, tbi, tpi) to the 350 (carb, tbi, tpi)?
Thanks!!!!!!!

 

They will all bolt up, though the L98 TPI ones were the least restrictive.

 

i think L98s are a little bigger then the LO3s. they will fit on each other though

 

wait....so if i get manifolds from say...an L98 89 IROC they will bolt up to my LG4 and be less restrictive?? will i notice a sound/performance difference?? even if its just a little, its something.

 

*cough* headers *cough* why waste time and money on l98 exhaust manifolds? they are still much more restrictive than a cheap set of headers...is it for emmissions or something??

 

yeah i wouldnt remove the manifolds to put on manifolds

 

Careful now, I got slammed for saying that to someone not too long ago.

 

my manifolds are all rusy and crappy and here in jersey we have tight a$$ emission laws...its almost gettin as bad as cali here... i wanna get headers, but at the same time i kinda want to keep away from em for a little while..so i figure if i can get the L98 manifolds for cheap if not nothing, why not?

 

It would be a pain in the @ss for maybe 5hp.

 

im pulling the engine in the summer for the new LG4 and trans so itll be out and available for the switch

 

They are ment to rust, that is just how they are made. If you keep the mani's on there, have you thought about looking into a different Y pipe? It would help flow, and still look org. From what I have heard it is one of the biggest if not THE biggest blocker in the our exhaust. Don't feel bad jersey people, you could be as bad off as Mass. They have to run there cars on a dyno type machine at 30MPH!! And they check for 4-5 different gasses. Pa only looks for 2. SC NONE!!

 

I'm putting hooker headers on my gta right now. There's no way in hell i'd go through all this trouble to put manifolds back in there. But if you do, i have a set of used L98 off the GTA that are now taking up space in my garage. shoot me an email if interested..........

 

In NJ they put your car on a dyno too ...I think, I wouldn't know though since I never been through NJ inspection

 

yea in jersey we get tested at i think 15 and 25 mph