[GTOGEORGE]

Originally Posted by ho428

I couldn't figure out why they said they had to make motor mounts, that none existed for that combo.
I'm assuming that was a made for TV moment.

Ya I thought that was STUPID also...........Pontiac engine in a Pontiac car, Silly!


GTO George

[Sirrotica]

Originally Posted by GTOGEORGE

Ya I thought that was STUPID also...........Pontiac engine in a Pontiac car, Silly!


GTO George

Cold be a pre 70 400 stroker block 455 with only the early motor mount provisions, trying to put it in a late chassis. That will give you fits if you never ran into the problem before. First time I ran into it was putting a 69 428 in a 73 F body chassis. I ended up making the adapter plates before they were available from the aftermarket. I first encountered the problem around 1978-79.

After I made my first set I had quite a few locals that I made them up for before Butler and other vendors were selling them.

[GTOGEORGE]

Originally Posted by Sirrotica

Cold be a pre 70 400 stroker block 455 with only the early motor mount provisions, trying to put it in a late chassis. That will give you fits if you never ran into the problem before. First time I ran into it was putting a 69 428 in a 73 F body chassis. I ended up making the adapter plates before they were available from the aftermarket. I first encountered the problem around 1978-79.

After I made my first set I had quite a few locals that I made them up for before Butler and other vendors were selling them.

That was the engine that came out of it.........!


GTO George

[JD311]

Originally Posted by GTOGEORGE

That was the engine that came out of it.........!


GTO George

II know what they did . They used polyurethane inserts for chevy clamshell mounts. They had to cut the tabs off so the Pontiac uppers would fit. Been there .

[GTOGEORGE]

Originally Posted by JD311

II know what they did . They used polyurethane inserts for chevy clamshell mounts. They had to cut the tabs off so the Pontiac uppers would fit. Been there .

Thanks!


GTO George