does anyone know if headers for a 93 w/350 headers with y-pipes will fit my 91 305 tpi with single cat?

 

they should since a 350 is a 305 just borded over.

 

350 is not a bored 305, but physically the blocks are the same size. If it's the size primaries you want, they will fit. Also 93s had a single cat so I would think that would work too but I'm not totally sure.

 

They will certainly fit the heads. There's no doubt about that.

If you're wanting to know if they'll fit the car, I doubt it. The 93 was the first year of the 4th gen, and the LT1. So to say it'd fit, I wouldn't bet the farm on it. But then again, I never thought 4th gen interior would fit in a 3rd gen until I saw it here on this message board.

Hopefully someone who's done it, or tried it will give you a 'yes' or 'no'.

Good Luck,

AJ

 

93 LT1s are also D-ports, dunno if they would be good to use on square ports or not.

 

I'm not sure, but I know the ls1 headers won't, they have different heads, the exhaust ports are spread out evenly like a big block......if i remember right

 

I'm no 4th gen expert, but I would think that if those headers would fit in our chassis, it would be a well-known fact on this board.

Fitting the heads isn't the issue. Getting the tubes past the chassis is.

 

I would like to know if the 93 LT1 headers would fit on our thirdgens as the heads I am using have D shaped exhaust ports. It sure would make for a better seal. Hopefully someone has tried to put these on and will tell us one way or the other.