326-455 engine swap/ head bolts - Pontiac GTO Forum
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post #1 of 4 (permalink) Old 10-31-2012, 10:31 AM Thread Starter
 
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326-455 engine swap/ head bolts

Pulled 326 out of '66 Lemans convertible. Ready to install 455. When I put both engines side by side in the garage, I noticed that the 326 has 2 head bolts on the drivers' side between #1 and#3 cylinders, and between #5 and#7 cylinders which both had smaller studs on top of the bolts for my ground wire and for starter wire tube. The 455 has no studs on the head bolts. Can I: 1) take the bolts out of the 455 4x head one at a time and replace them with the 2 bolts from the 326 w/ 094 heads, or will that compromise the integrity of the new head gasket on the 455? And: 2) Does anyone know if these bolts are the same length on both engines? Need to know asap! THANKS
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post #2 of 4 (permalink) Old 10-31-2012, 02:23 PM Thread Starter
 
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455 head bolt

I guess the real crux of the question is: can I remove head bolts one at a time and replace them without compromising the head gasket?
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post #3 of 4 (permalink) Old 11-01-2012, 12:44 PM Thread Starter
 
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warp the head

Well I reccon there's no good answer, so I'll just do it, and the new head gasket be damned.
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post #4 of 4 (permalink) Old 11-01-2012, 01:15 PM
 
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you can run the ground cable to the block in any extra hole just sand paint away before you do and put a little dielectric grease on it, for the starter tube you can mount with bolt just be sure to torque it back to spec and you should be good.

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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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