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Canadian Poncho Homepage -> Canadian Poncho -> 1970 + Canadian Pontiac Power Train Forum -> 455 Buick
Post Info TOPIC: 455 Buick
Highlander


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455 Buick
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I know that this is not right place too find info on a Buick 455 engine heads, but you guys on here sure know your stuff..i'll give it a shot and see what happens.  Here's the #'s on top off the head with the valve cover removed..1231788 and a J25. Now on the manfoild it has 1233699....thanks.

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Canadian Poncho


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I did some checking and there is no listing for a 1231788 head. There is a 1231786 which was a 68-9 430 head and a 70-72 455 head.

I checked 1233699 for both intake and exhaust manifolds and nothing came up. A 70 intake should be 1231718, for exhaust 1238094 right
1233451 left

Todd

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Todd
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Highlander


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Thanks Todd.. it's hard too make out some off those #'s..as far as i know the motor is a 455 that came out off a 70 Buick Riviera.
Just curious too what the HP rating is for this Engine.

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Canadian Poncho


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Depending on the car they were in, they were rated anywhere from 350 hp (GS455) to 370hp in a full size Buick in 1970 although it is generally known the actual HP was higher. Torque is 510ft/lbs at 2800rpm! 1970 was the best year for the Buick 455. Any plans for the motor?


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Highlander


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That sounds good..it's going in my 79 T.A.. The 455 Pontiac motor that's in there now is going to be rebuilt.

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