Pump Gas Stroker Builds

[robinsonwr]

What is your stroker combination and if known how much horsepower and torque does it make? My combination is 440/512:
Block: 1971 nonhp .060 overbore
Crank: Eagle 4.25 stroke (2.20 rod journals)
Rods: Eagle 7.1 h-beam (.990 pin)
Pistons: SRP
Compression: 11:1
Balancer: Professional Products 90013
Intake: Weiand 8009 (dual plane)
Heads: 440 Source Stealth (929-16 springs, 741-16 retainers, 611-16 locks),
ported 290cfm @ 600.
Camshaft: Hydraulic Roller, Comp Cam custom grind (ADV Duration 281-287,@ .050 230-236, lift 622I & 625E w/1.6 rockers. GRIND #: CRB3 3194 /3196 HR111.
Rocker Arms: Crane Cams Gold 1.6
lifters: Comp Cam 8921-16
Push Rods: Smith Bros. Custom
Carb: 950 CFM holley
Exhaust: 1968 HP Manifolds

Have not completed the build yet. Hoping for dyno time in the near future, maybe by the end of summer. I hope the combination will make 575hp and 600+tq. That is my goal for this build.

 

[bigmanjbmopar]

Have you tried using comp cams camquest yet? Free software you can download and run the numbers to get a general idea of what it should make. 585 for me

 

[robinsonwr]

Have you tried using comp cams camquest yet? Free software you can download and run the numbers to get a general idea of what it should make. 585 for me

No, haven't used that software yet. Wow, 585 hp would be great. I would not have a problem with that. It would probably do better with a set of 2" primary tube headers though. Thanks for the info.

 

[383man]

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Here is my 63 Plymouth street car pump gas combo that I race thru the pipes just like I drive it to the track:

440 block .030 over

440Source stroker kit with w 4.15 crank (493 cubes) and dished pistons for 10.6 comp with the Indy EZ heads I use that were prepped by Dwayne Porter.

The EZ heads are opened up to Max Wedge size and have a little bowl blending as Dwayne did a great job.

Dwayne Porter also speced the cam for me that is a solid flat tappet and it is 264 & 270 @ .050 with .628 & .630 lift with the Hughes 1.6 rockers. It has a 110 LSA and I have it in on a 106 ICL.

Has the Indy dual plane intake with an 850 DP.

Mallory dist with the MP orange box and Acell coil as the ign never missed a beat.

TTI 2" headers with a 3" X-pipe system out to the rear bumber.

727 with manual v/b and Dynamic 9.5 converter that flashes about 4200.

8-3/4 (I plan to look into a Dana soon) with 4.30's and I use a Hoosier radial slick 30 x 9.

Car weighs 3700 with me in it. I shifted at 6k and trapped about 6400 as thats where it feels good.

Best et so far is 10.76 @ 124.49. By the weight of 3700 and the mph I figure its making right around 600 hp. But I really want to try a bigger carb and see how it likes it. Ron

 

[robinsonwr]

383man,
Are you running stock style valve covers? If so did you remove the baffles for the rockers? By the way very sweet build and she is a badass too, great.

 

[383man]

383man,
Are you running stock style valve covers? If so did you remove the baffles for the rockers? By the way very sweet build and she is a badass too, great.

Thank you for the kind words. The valve covers are actually and older chrome Eddy valve covers. They are taller then stock as the Hughes roller rockers fit under them with ease. I painted them orange because they were scratched and I wanted the Max Wedge type look. Ron