i was wondering if there will be a problem putting a big block pontiac in an 86 t/a. I know the motor mounts are the same for small and big block chevy's, but is this the case for pontiacs as well?
thanx


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86 trans am

 

No, Pontiac motors are altogether different from Chevy motors. Somebody might make a mount to do that swap, otherwise you'd have to fab something. Then there's exhaust; and f course the trans bolt pattern is different, so you'd have to get a different trans or a motor plate or something.

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"So many Mustangs, so little time..."

 

Get a good look at a pontiac engine in a Pontiac. Chances are the third gen crossmember is drilled for the mounts already. Get them from a later model Pontiac, like a 301 Grand Prix, 78 - 81 or so, or a Bonneville, or a Firebird like a 79.

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jmd
L69 / T5