6 to 8 swap question

[kgmunro]

I am putting a 350 in place of the 230 6 cyl in my 65 gmc. Can I use the factory mounts or do I need to use the mounts from an 8 cyl? I have the motor mounts and frame brackets from the 1985 truck the engine came from too.

[padresag]

use your orig mounting if you want.
ron

[luvbowties]

Originally Posted by kgmunro

I am putting a 350 in place of the 230 6 cyl in my 65 gmc. Can I use the factory mounts or do I need to use the mounts from an 8 cyl? I have the motor mounts and frame brackets from the 1985 truck the engine came from too.

I think others may agree: while in your position, now is a good time to set the V-8 1 inch forward from a factory location. Gives you comfortable clearance between distributor and firewall. May have to drill a couple of holes in the frame for the upper perch bolts.
sam

[padresag]

Originally Posted by luvbowties

I think others may agree: while in your position, now is a good time to set the V-8 1 inch forward from a factory location. Gives you comfortable clearance between distributor and firewall. May have to drill a couple of holes in the frame for the upper perch bolts.
sam

why?
ron

[rbar]

My HEI barely cleared the firewall, but it worked. However, when I went to tall valve covers they would hit the firewall when the engine moved side to side. It slowly dented the firewall and kept the valve covers from sealing. I moved my engine forward just to give me a little more room on the distributor, but mostly because I wanted tall valve covers without hitting the firewall.

[padresag]

perhaps he is going to maintain a std. that would sure make for a lot of work wouldn't it?
ron

[rbar]

It would be more work for sure.

[luvbowties]

Originally Posted by padresag

perhaps he is going to maintain a std. that would sure make for a lot of work wouldn't it?
ron

Hey, padresag, you are right. I do tend to get over-anxious and wrongly assume that everyone who starts mechanical mods on our pickups is eventually going to X the original tranny for a turbo or overdrive, do the power disc brakes, upgrade to p-steering, adopt HEI ignition, bolt in a rear tranny crossmember type mount, fit a proper driveshaft--the whole 9 yards.

Kgmunro, I apologize to you, the original poster, for maybe having misled you. It was definitely not on purpose. Had my assumptions above been verified, the forward relocation would more nearly have been a proper consideration. Good luck to you and here's hoping you enjoy every phase of the upgrading. If this your first, you have untold joys and self-satisfactions ahead. If not, you already know how fulfilling this good work can be.
sam