sbc 350

80GPLJ · Guru

sbc 350

80GPLJ · Guru

Any help guys? No?

427carl · A Poncho Legend!

YES HANG ON I WILL BE RIGHT BACK biggrin

1964Canso · Guru

350 should bolt right in.Will have problems mounting the trans though, crossmember,and dr. shaft will be a prob. for you.why not use the th350 thats in it?You wouldnt have to change/modify anything .
anything else,Anyone?

-- Edited by 1964Canso on Sunday 7th of June 2009 10:40:21 AM

87 player bird · Poncho Master!

Sbc mounts are different than 301 pontiac. You will probably need to drill and bolt in different mounts.

80GPLJ · Guru

now now 427

80GPLJ · Guru

I was informed otherwise - the poncho tranny would need to be adapted to sbc, or is it actually a Chev tranny in a Pontiac anyhow?

-- Edited by 80GPLJ on Sunday 7th of June 2009 11:42:59 AM

427carl · A Poncho Legend!

you need different engine mounts, but you can use 350 trans you need to shorten.lengthen some wires, but its a bolt in gets some mount for 305 Monte

4SPEED427 · A Poncho Legend!

The trans will only fit if it has both patterns on the bellhousing. If it's the Buick/Olds/Pontiac pattern only, you will need to buy an adapter or find a different trans. If it has both sets of holes as some do, you are home free.

SD 396 · Poncho Master!

80GPLJ wrote:

I have a 350 sbc / TH 400 tranny ready to go into my 80 GP, was wondering about motor and tranny mount location as compared to my stock Pontiac 301. Same or different location? Any modifications required?

The motor mounts in your car will have to be changed to ones from a Chev powered car. Any G body, Monte Carlo, Malibu, El Camino will work. The TH400 will depend on what vehicle it came out of. There are different tailstock lengths which will affect the trans mount location as well as the length of your driveshaft.