305 block swap

[redjmp]

I am looking at swapping out a pre 86 2 piece rear seal block for a newer one with the one piece design and reusing the old style crankshaft in the newer block so that I can reuse my original flywheel and coupler. Is this possible or will I run into problems?

There is also DIY kit available to convert a pre 86 block for use with stock chevy roller gear. Some grinding and drilling required. Any opinions on this method?

Today I purchased a set of 305 vortec heads from a 96-99 truck. $275 cdn delivered.
I want to run my stock 2bbl carb but the only vortec manifolds I could find are 4bbl aftermarket ones.
Should I try running with a 2 to 4 adapter or hunt down the proper marine chevy manifold.
My local auto wrecker told me that chevy didn't make carburetor manifolds for the new vortec heads.
Anyone know where I might find one?

 

[Bondo]

Re: 305 block swap

I am looking at swapping out a pre 86 2 piece rear seal block for a newer one with the one piece design and reusing the old style crankshaft in the newer block so that I can reuse my original flywheel and coupler. Is this possible

Nope,........ It Ain't gonna Happen..........

want to run my stock 2bbl carb but the only vortec manifolds I could find are 4bbl aftermarket ones.
Should I try running with a 2 to 4 adapter or hunt down the proper marine chevy manifold.

Either Find a 2bbl. Manifold, or buy a 4bbl.....

 

[John_S]

Re: 305 block swap

I don't think the cranks will swap.

I wouldn't waste time and money on the roller, but you know my opinion there

Why buy vortecs and strangle it with your 2brl? The 2brl will need rejetting anyway. The Edelbrock 1409 is only around $300, and easy to tune.