Pontiac GTO Forum banner

1 - 2 of 2 Posts

·
Registered
Joined
·
52 Posts
Discussion Starter #1
I have a line on a 389 out of a 63 Bonneville. Anyone know if it is compatible in a 66 GTO? It also comes with a 4 speed hydromatic tranny and the same question of compatibility. Engine needs rebuilding but ran last time it was in a car.
Thanks
 

·
64-67 Expert
Joined
·
8,569 Posts
Not really. '63 engines had the starter mounted to the transmission instead of to the block. Adaptor plates are made, but it can be a hassle. Also engine mount issues. '65-'66 389's are still pretty much available, and are not overly expensive. Also, the heads and intake are different on a '63, and not interchangable with '65-up parts.
 
1 - 2 of 2 Posts
Top