440CI SBC combo
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440CI SBC combo
Will this combo make 650HP on pump gas?
Iron eagle block. 4.125strokeX4.155bore
11.5CR
Roller cam: 305/311Adv., 293/279@.050", .680/650"(+1.6RR), 110LSA
AFR 245NPP Heads.
Ported Super Vic II and Dominator
1/3/4-1/7/8 step headers.
Comments?
Iron eagle block. 4.125strokeX4.155bore
11.5CR
Roller cam: 305/311Adv., 293/279@.050", .680/650"(+1.6RR), 110LSA
AFR 245NPP Heads.
Ported Super Vic II and Dominator
1/3/4-1/7/8 step headers.
Comments?
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Re: 440CI SBC combo
Calculated Dyn. Comp. Came in at 8.15. So with good a cooling system 93 octane pump gas should be OK??
Re: 440CI SBC combo
Go to www.performancetrends.com and down load their Engine Analyse Pro simulation software (it’s free for ten days) and
enter your engine data and you will get a very close estimate. I’ve done engines similar to yours and the simulation and the results on my dyno were very close. This has been discussed here before but, I guess you missed that class.
Greg Finnican
Charlotte, NC
enter your engine data and you will get a very close estimate. I’ve done engines similar to yours and the simulation and the results on my dyno were very close. This has been discussed here before but, I guess you missed that class.
Greg Finnican
Charlotte, NC
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Re: 440CI SBC combo
If it's going to be more of a street car running 92 octane gas, I'd go with no more than 10:1 compression with a cam with 250 duration @ .050". I'd think you could still make your 650 hp goal with that setup.
Joe Facciano
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Re: 440CI SBC combo
I was going to say that is too long duration.
"69"satellite,3900lbs,8-71,edel victor heads,I/C,446cu.in W/gas 1250 carbs
Re: 440CI SBC combo
I would hope it makes around 700hp with that much duration.
You could work the chambers some to lower the comp a bit if needed.
Also the step headers may loose a bit, 1 7/8" should make more.
Some will recommend 2" headers.
You could work the chambers some to lower the comp a bit if needed.
Also the step headers may loose a bit, 1 7/8" should make more.
Some will recommend 2" headers.
67 camaro
girly rollers on pumpgas:
420 - 641hp BretBauerCam, 1.39, 9.79 @ 137.5
383 - 490hp 224/224, 1.56, 10.77 @ 124.6
502 - 626hp 252/263, 049s 1.44, 10.08 @ 132.7
62 Nova cruiser
383/200-4R/12-bolt w 373s
224/224 HR cam
1.57 10.97 @ 121.2
girly rollers on pumpgas:
420 - 641hp BretBauerCam, 1.39, 9.79 @ 137.5
383 - 490hp 224/224, 1.56, 10.77 @ 124.6
502 - 626hp 252/263, 049s 1.44, 10.08 @ 132.7
62 Nova cruiser
383/200-4R/12-bolt w 373s
224/224 HR cam
1.57 10.97 @ 121.2
Re: 440CI SBC combo
Talked to the head guys. They recommend a smaller duration cam. 267/273 @ .050".
Thanks for the inputs.
Thanks for the inputs.
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Re: 440CI SBC combo
i know what big Joe would say if he was here , go with the one u have, its a 440 , not a 350
Last edited by levisnteeshirt on Wed Mar 14, 2018 11:01 pm, edited 1 time in total.
Re: 440CI SBC combo
"And rev it up!"
Felix, qui potuit rerum cognscere causas.
Happy is he who can discover the cause of things.
Happy is he who can discover the cause of things.
Re: 440CI SBC combo
You still haven't clarified the application: Track-only? Street/strip? "Big" stall or stick-car? Etc., etc., etc., ...
How high are you willing to spin it? Do you have a max RPM limit based on components used or life expectancy?
FWIW, my 11.5 CR 452 ci BBM has a 266/266 @ .050" x .650+" solid roller... street/strip pig, although the engine still needs to get stuffed back in the car after last fall's dyno flog.
Re: 440CI SBC combo
It's a street/strip deal. Motor only. Pump gas. Don't want to spin it over 7500. Going in front of a Coan TH350. We'll have them spec a converter.
Re: 440CI SBC combo
Using a Bullet roller.
301/266 .450" Lobe
313/268 .452" Lobe
LSA- 108
1.65/1.55 shaft rockers.
301/266 .450" Lobe
313/268 .452" Lobe
LSA- 108
1.65/1.55 shaft rockers.