What kinda power will this 408 make ?
#735617
06/28/10 12:34 PM
06/28/10 12:34 PM
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Joined: Jan 2008
Posts: 411
Big Island ,VA
JC Childress
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 411
Big Island ,VA
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Its a 4'Mopar ( Scat ) crank,K-1 H-beam rods, CP pistons ( 1.5,1.5,3mm ring package with napier 2nd ring ), comp big mutha thumper hydraulic cam ( .243 / .257 @ .050, .507 / .494 lift , int centerline 102 ), Crane lifters, Billet timing set, Charlies Pan ( no kickout or anything fancy ), BHJ balancer, RHS heads with 2.02 valves and otherwise out of the box, Harland Sharp 1.6 rockers, Victor 340 intake, 750 Holley dp. Compression will be around 10.2 to 1. 1 5/8 headers.
I'm shooting for 500 HP and 525 TQ.
I know several folks have built these, just curious what ya'll think it will make . We'll dyno it when its done.
Thanks a bunch.
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Re: What kinda power will this 408 make ?
[Re: JC Childress]
#735618
06/28/10 02:04 PM
06/28/10 02:04 PM
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Joined: Oct 2003
Posts: 7,506
Az
Crizila
master
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master
Joined: Oct 2003
Posts: 7,506
Az
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470HP. Don't think you can make 500 with those heads - out of the box.
Fastest 300
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Re: What kinda power will this 408 make ?
[Re: JC Childress]
#735619
06/28/10 03:16 PM
06/28/10 03:16 PM
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Joined: Aug 2003
Posts: 3,245
Between a rock & a hard place
cudadoug
master
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master
Joined: Aug 2003
Posts: 3,245
Between a rock & a hard place
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Quote:
Its a 4'Mopar ( Scat ) crank,K-1 H-beam rods, CP pistons ( 1.5,1.5,3mm ring package with napier 2nd ring ), comp big mutha thumper hydraulic cam ( .243 / .257 @ .050, .507 / .494 lift , int centerline 102 ), Crane lifters, Billet timing set, Charlies Pan ( no kickout or anything fancy ), BHJ balancer, RHS heads with 2.02 valves and otherwise out of the box, Harland Sharp 1.6 rockers, Victor 340 intake, 750 Holley dp. Compression will be around 10.2 to 1. 1 5/8 headers.
I'm shooting for 500 HP and 525 TQ.
I know several folks have built these, just curious what ya'll think it will make . We'll dyno it when its done.
Thanks a bunch.
I think you CAN hit the 500 number with those heads with a 2.02 and a good bowl blend. Brian at IMM did it; although it took a 950 carb and a healthier camshaft.
I think, as you describe it, depending on air quality...you're around 460-47--ish HP.
Are going to get on the pump and let us know? Please keep us posted if you do!
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Re: What kinda power will this 408 make ?
[Re: Crizila]
#735620
06/28/10 03:26 PM
06/28/10 03:26 PM
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Joined: Jan 2003
Posts: 302
Casa Grande,Arizona
DennisJ
super street
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super street
Joined: Jan 2003
Posts: 302
Casa Grande,Arizona
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I agree with Crizila.Somewhere in the 460 to 470 range.
Dennis Jokela
I started out with nothing,and I still have most of it.
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Re: What kinda power will this 408 make ?
[Re: DennisJ]
#735621
06/29/10 12:22 PM
06/29/10 12:22 PM
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Joined: Jan 2008
Posts: 411
Big Island ,VA
JC Childress
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 411
Big Island ,VA
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We'll see what she does when we dyno it. I'm hoping the small ring package with the napier ring will be worth a little ! Its just a street motor that we want to sound good, and this cam may leave a lil power on the table but it should sound GREAT !
J.C. Childress
(434) 665-9541
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