Re: High Torque Pump Gas Small Block
[Re: Dave W]
#1023723
06/30/11 11:28 PM
06/30/11 11:28 PM
|
Joined: Sep 2004
Posts: 2,093 oberlin, Ohio
Rapid340
top fuel
|
top fuel
Joined: Sep 2004
Posts: 2,093
oberlin, Ohio
|
I built one for John Jadwisiak and his wife Kelli (moparts member rapom). 4in stroke 360, hyperuetectic pistons, with ported production magnum heads with stock 1.92 valve sizes and a short duration (215 degrees) hyd roller cam. It was for his 68 charger with a stock solid fan, PS, A/C and 2:94 gears. It has a chinese air gap intake with an eddy 800 cfm carb. He ran 13.28 on the first time out with no track tuning (and no Tach) on street tires. I built it with the goal of 12.70s and think that could happen this year. A clutch fan and removed PS-AC belts may get him a couple tenths. Timing, distributor recurve, jetting and the right shift points could cover the rest. Smooth idling torque motors can be fun and better fuel mileage doesnt hurt either.
Last edited by Rapid340; 07/02/11 07:31 PM.
1971 Factory Appearing Duster 340 11.000 @ 122 mph
|
|
|
Re: High Torque Pump Gas Small Block
[Re: Rapid340]
#1023724
07/01/11 08:26 AM
07/01/11 08:26 AM
|
Joined: Dec 2006
Posts: 1,178 Indy
FlyFish
super stock
|
super stock
Joined: Dec 2006
Posts: 1,178
Indy
|
I’m not sure of the exact torque numbers (never dynoed), but I would guess my 410 is right around 500 ft lbs with ~ 530 ish horsepower. Here is the combo:
360 block, 410 ci, pump gas, 10.8:1 compression Eagle 4.00 steel crank, Scat I-beams, Diamond pistons, total seal file fit rings, ARP main/head studs, Edelbrock heads stage II ported by Ryan J @ Shadydell, Small solid roller 248/254 duration w/ .576/.582 lift, Airgap, Proform 750 dp 4.10 gears, spool, 35 spline axles, pinion snubber, drag shocks front and rear 727, manual valve body, 8” converter, 28x11.5 Hoosier QTP 3250 lbs, street trim and with 3 inch Flowmasters.
It pushes my car to 10.8's in good air.
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
|
|
|
Re: High Torque Pump Gas Small Block
[Re: FlyFish]
#1023725
07/01/11 01:11 PM
07/01/11 01:11 PM
|
Joined: Feb 2007
Posts: 2,578 sweden
1Fast340
master
|
master
Joined: Feb 2007
Posts: 2,578
sweden
|
im sure it could even be done with stock stroke with a bit of boost.
im pretty sure my stockstroke eddyheaded 340 will make that 500# at a pretty low rpm as soon as the recirkulationvalve closes on the twinscrew.
Last edited by 1Fast340; 07/01/11 01:12 PM.
|
|
|
Re: High Torque Pump Gas Small Block
[Re: AndyF]
#1023726
07/01/11 09:53 PM
07/01/11 09:53 PM
|
Joined: Oct 2008
Posts: 235 Glendale, AZ
Dave W
OP
enthusiast
|
OP
enthusiast
Joined: Oct 2008
Posts: 235
Glendale, AZ
|
Quote:
Not a problem at all if you have the money. Look in the tech archives for a magazine article that I wrote on the 427 inch small block that we built for a street driven track car.
That is a strong build and an even better article! Thanks for the info.
Anybody else have any more combo's they would like to post?
|
|
|
|
|