Need some help..77' 400 in a 68 GTO..Possible? - Pontiac GTO Forum
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post #1 of 4 (permalink) Old 11-28-2017, 11:29 PM Thread Starter
 
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Need some help..77' 400 in a 68 GTO..Possible?

I new to the forum and have not been able to find online if its possible.

Please bare with me for I am new to the GTO world.

I have a 1968 GTO Convertible 4-Speed with a 400.

The short block was wasted so I ended up getting a 1977 block off of a local guy. Sent it out for a complete rebuild, got it back and went to put the motor mounts on and wouldn't you know a 68' 400 motor mount wont fit because its to small.

I found a website that stated "1977 to 1979 did not have the rear motor mount holes at all. Making it very difficult to install in to a GTO/Tempest."

So with that being said.... am I screwed...?

Or do they make a motor mount (or adapter) that will put a 77' 400 into my 68" GTO in the factory position.

Thanks in advance!
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post #2 of 4 (permalink) Old 11-29-2017, 11:04 AM
 
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"...do they make a motor mount (or adapter) that will put a 77' 400 into my 68" GTO in the factory position..."


Yes. But some say it takes some modification/fabrication, in order to get it all to work.

https://butlerperformance.com/i-2445...tegory:1393557

Paul Spotts sells some cheaper adapters, which do not come with bolts, and do not have nuts welded on 'em.

http://www.spottsperformance.com/mounting

Last edited by bigD; 12-01-2017 at 08:32 AM.
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post #3 of 4 (permalink) Old 11-30-2017, 02:44 PM Thread Starter
 
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I have looked into the Buttler ones so I think I will try that. Has anyone else been in this situation and what was your outcome ?
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post #4 of 4 (permalink) Old 12-18-2017, 08:18 PM
 
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Originally Posted by perrystroke View Post
I have looked into the Buttler ones so I think I will try that. Has anyone else been in this situation and what was your outcome ?
I don't think you will have any issue getting that engine in. If you don't get the answer you need try the PY site. They have a street pontiac and a 68:69 gto tech section. Doug
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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO Complete Engine Compartment Discussion

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