454 SB
Thread Starter
Race Director
Joined: Aug 2002
Posts: 17,367
Likes: 1
From: Kentucky
454 SB
Anyone built or know someone who has built a 454SB(4.25 bore and 4.0 stroke)? Just wondering how it works out. Do you think it would be reliable?
[Modified by castivers, 6:34 PM 2/13/2003]
[Modified by castivers, 6:34 PM 2/13/2003]
Burning Brakes
Joined: Nov 2000
Posts: 855
Likes: 0
Re: 454 SB (castivers)
I think it could be made reliable. After all there are no factory blocks or cranks that can produce a 454 small block. Okay maybe a bowtie block, but I'm talking stuff that came in production vehicles. so all of the parts you need are going to be top notch after market stuff. Everything would need to be blue printed and balanced, but then again why build a big inch small block and not build it right.
Thread Starter
Race Director
Joined: Aug 2002
Posts: 17,367
Likes: 1
From: Kentucky
Re: 454 SB (Rick86)
Dart and World are 2 companies starting to make blocks for this big a bore. Its just one more thing for me to throw in the mix when I think about mods for next winter.
[Modified by castivers, 6:01 AM 2/14/2003]
[Modified by castivers, 6:01 AM 2/14/2003]
Le Mans Master
Joined: Mar 2001
Posts: 9,739
Likes: 0
From: A Pretty Part of MO
Re: 454 SB (castivers)
I saw in a recent magazine that a company was building 415 and 427 ci small blocks. They were using the Dart block. I'll look up the article and post a website if they have one. They ran around $9k for an aluminum head 427 and put out around 525hp, I think.
They might have info on making an even larger sb like the 454... :cheers:
They might have info on making an even larger sb like the 454... :cheers:
Le Mans Master
Joined: Mar 2001
Posts: 9,739
Likes: 0
From: A Pretty Part of MO
Re: 454 SB (90qzrblu)
Check out www.theengineshop.com
Bill Mitchell racing engines. They advertise a World Products Motown block based 427, aluminum head for $9k. 530 hp, 540 tq.
Their top 415 goes for $8k, and puts out 485 hp, 500 tq.
They might be able to throw in the different crank and pistons for a 454.
:cheers:
Bill Mitchell racing engines. They advertise a World Products Motown block based 427, aluminum head for $9k. 530 hp, 540 tq.
Their top 415 goes for $8k, and puts out 485 hp, 500 tq.
They might be able to throw in the different crank and pistons for a 454.
:cheers:
Drifting
Joined: Feb 2002
Posts: 1,952
Likes: 2
From: Little Rock Arkansas
Re: 454 SB (90qzrblu)
I've built two 450+ inch small blocks... One on an Olds Rocket block the other on a Dart...Both tall decks (natch). 4.185" bores with 4.125" strokes...VERY SHORT compression height and terrible rod stroke ratio. One is a Roots blown motor the other is n/a. They aren't rpm motors but the have a very broad torque curve and make pretty good power. But they tend to be octane sensitive because of the r/s ratio. I'm not really all that impressed with them; I tend to be of the big bore/short stroke persuasion.
-Jeb Burnett
-Jeb Burnett
