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Old 01-31-2020, 10:58 PM
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Formulajones Formulajones is offline
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Originally Posted by Douglas Willinger View Post
I myself am intrigued by the idea of using the higher compression round-port heads, either the 1968 "96" Ram Air II or the 1969 "722" or 1970 "614" Ram Air IV heads on a 4" stroke.
That's something I've also been wanting to do for quite some time now. I need a set of 614's for what I want to do. Stick them on a 455 or maybe something slightly larger with a 4.250 crank.

Problem is they aren't falling off trees, and I can't see spending $2000 plus for a set of heads that I have to sink another $1000 plus in rebuilding. There has been talk by a couple different people of making an aluminum version to look the part, maybe with modern chambers that I'd love to jump on board with, but that never seems to go anywhere.

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Old 01-31-2020, 11:04 PM
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Douglas Willinger Douglas Willinger is offline
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My engine build thread:

http://psp.aquacomp.net/topic.asp?TOPIC_ID=13682

Quote:
Originally Posted by Formulajones View Post
That's something I've also been wanting to do for quite some time now. I need a set of 614's for what I want to do. Stick them on a 455 or maybe something slightly larger with a 4.250 crank.

Problem is they aren't falling off trees, and I can't see spending $2000 plus for a set of heads that I have to sink another $1000 plus in rebuilding. There has been talk by a couple different people of making an aluminum version to look the part, maybe with modern chambers that I'd love to jump on board with, but that never seems to go anywhere.

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1970 Lucerne Blue Firebird Trans Am, deluxe blue interior. Original Ram Air III, M-21, 3.73. Being built as a 4" stroke "434" with SR 614 Ram Air IV heads

1972+ Lucerne Blue 4-door hardtop "what if" T-41 Le Mans Sport GT/Grand Am concepts. Equipped with future 3" journal "455 HO"/"what if" prototype "SD 455".
What if GM had continued production of the 1970-72 GM A body somewhere in the southern hemisphere?
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Old 01-31-2020, 11:15 PM
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Formulajones Formulajones is offline
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Originally Posted by Douglas Willinger View Post
That sounds pretty cool. I've always liked the idea. 22 years ago I built a small main 428, turned down a 428 crank and shoved in a 400 block, and then used a #13 head on it with custom dished pistons for 9.7:1 compression. Had 3 different cams in it. Really liked that combo and worked well.

I have a 70 RAIII Formula that I'd like to make a RAIV clone from just for giggles, but I want to do that with a smallish stroker engine, probably end up with 470-480 cubes but dress it to look stock and have some fun with it. I quit actively looking for 614's though as the prices rose, and I'm not going to wait another 10 years for someone to make them. I will likely end up heavily modifying current aluminum round port offerings to look the part.

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