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post #1 of (permalink) Old 01-19-2007, 09:16 PM Thread Starter
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Buick Heads....

Any Buick guy's out there?

455: What year heads, fit what year blocks?


Is there a break in the years for compatablity?

I understand that some blocks are more desireable and some heads are more desireable.

What is the capatability range here. I have heard several different things and want the real story.

Are there some "water passage" problems?
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post #2 of (permalink) Old 01-20-2007, 12:59 AM
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Re: Buick Heads....

I don't have any experience with the big blocks, just small block V-8 and V-6. The one thing you should check into is the price of Buick parts, if you are considering building one. They are expensive. For what I invested in building 252 V-6 and 350 V-8 Buicks, I could have bought four brand new 350 Chevy crate motors. Oiling is a concern due to 90 degree bends in the oil pump housing, though the big blocks have longer gears and push more oil than the small blocks. Performance parts are available from http://www.taperformance.com and http://www.postonbuick.com, but you better have deep pockets.
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post #3 of (permalink) Old 01-20-2007, 07:54 AM Thread Starter
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Re: Buick Heads....

[ QUOTE ]
I don't have any experience with the big blocks, just small block V-8 and V-6. The one thing you should check into is the price of Buick parts, if you are considering building one. They are expensive. For what I invested in building 252 V-6 and 350 V-8 Buicks, I could have bought four brand new 350 Chevy crate motors. Oiling is a concern due to 90 degree bends in the oil pump housing, though the big blocks have longer gears and push more oil than the small blocks. Performance parts are available from http://www.taperformance.com and http://www.postonbuick.com, but you better have deep pockets.

[/ QUOTE ]


I've already started my project "The Black Hole"..... [img]/ubbthreads/images/graemlins/wall.gif[/img]
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post #4 of (permalink) Old 01-20-2007, 01:06 PM
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Re: Buick Heads....

I loved the old 455....something about the old big blocks that you just can't help but love....

To be honest, I'm not sure why you are asking us....I typed in "Buick 455" in Google and found a ton of info

Do a search...you will find the info you need....and then keep us posted on the progress....
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post #5 of (permalink) Old 01-23-2007, 10:29 AM
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Re: Buick Heads....

My wife had a 72 Rivera that had a 455 in it. That thing was huge. And it was a great cruiser. You could be going along and floor it, You could see the front end kinda twist and then it would go. (And the gas needle would start to drop just as fast).

We have been looking on and off for a replacement Riv for her. She has always missed that car.
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post #6 of (permalink) Old 01-24-2007, 07:51 PM
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Re: Buick Heads....

I lived thru both "gas crisis" in the 70's driving a buick with a 350 cid. i really liked the car and the engine but I finally got rid of it because it was like driving a bottomless pit for gas. nothing I did helped with the MPG, from less restrictive intake to changing the curve on the distributor.
I remember back in the first"crises" in 74 my uncle trading his Buick Wildcat with a 400 cid 4 bbl in for a Gremlin with the, (jeep) 258 cid engine and getting worse gas mileage, if that's possible. He wasn't at all happy.

Now, Pontiac engines, especially the 400, have a close place next to my heart. Kind of like a bigger small block chevy without all the weight of the rat motors.
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post #7 of (permalink) Old 01-24-2007, 10:01 PM
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Re: Buick Heads....

I think you can bolt any Buick big block head on, but you'll want to get the 67 to 76 455 heads, as the valve size was a huge improvement over the "nail head" motors names because of the small size of their valves. I can't think of a better power plant. A Buick 455 is only about 40 lbs. heavier than a 350 Chevy, 120+ pounds lighter than a 454. The distributor is front mounted solving some of the firewall clearance problems. Cooling will be tough though as they tend to run warm. Just think of this; a 1970 GS Stage 1 455 put out a factory rated 510 ft/lbs or torque in stock form. Can anyone say BIG AXLES [img]/ubbthreads/images/graemlins/smile.gif[/img]
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