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Good results with 3.875" Stroke & Scat Pro Comp I Beam Rods!

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Old 10-20-2012, 04:44 AM
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alnukem
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Default Good results with 3.875" Stroke & Scat Pro Comp I Beam Rods!

Just posting this result because when I was looking, I could not find a answer. We used a 4.125" Bore Dart SHP block, Callies Compstar 3.875" Stroke crank & the 6" Scat Pro Comp I beam rods with the ARP 2000 upgraded cap screw. Minor Grinding on the Pan Rails & Excellent Cam Clearance for a standard base circle Hydraulic street roller. It turns out to be a 1/8" stroked 400 displaceing 414 cubes. The engine builder said it was a pretty perfect setup for what I wanted...a street motor, he said for drag racing, he would have done H beam rods. He also said because it was light that balancing was easy, he just had to drill, did not have use any mallory metal. The Scat rods I used were the Pro Comp series which seems to be very well liked by the people that use them, which includes a couple of big names. The part number is Scat 2-ICR 6000 7/16 A. I imagine this would also work well in standard 350 blocks to make a 396 Stroker this would give you 13 extra cubes over a 383 with the same money & a little extra grinding on the pan rail. Thanks & Good Luck!

Last edited by alnukem; 10-20-2012 at 04:57 AM. Reason: forgot comment about balancing
Old 10-20-2012, 02:56 PM
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REELAV8R
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396 CI, I like the sound of that. Thanks for the info.
Old 10-20-2012, 09:21 PM
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Crepitus
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Thanks for posting. Can you add the cam specs? I just hate the idea od a small base cam.
Old 08-12-2014, 04:56 PM
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alnukem
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Originally Posted by Crepitus
Thanks for posting. Can you add the cam specs? I just hate the idea od a small base cam.
530/530 @ 230/238 with a 112 lobe
Old 08-12-2014, 05:16 PM
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MotorHead
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Originally Posted by alnukem
530/530 @ 230/238 with a 112 lobe
So how is it running today ? Street manners ? Did you ever put it on a chassis dyno or take it to the drag strip ?
Old 08-14-2014, 06:51 AM
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alnukem
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Originally Posted by MotorHead
So how is it running today ? Street manners ? Did you ever put it on a chassis dyno or take it to the drag strip ?
No, I'm a putz! It's in long block form right now & I have to buy small parts. I kinda got side tracked with the 4 cam ZR-1's. I will finish it now. I just put the cam specs up so I could find them easier. Thanks.
Old 08-14-2014, 08:15 AM
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Aint that a small cam for that size motor ?
Old 04-18-2016, 02:44 PM
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alnukem
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Sorry for bringing a dead thread back to life after a decade, but I finally finished my build & in the sake of providing information for people searching for results, I am providing them, as there wasn't much info when I was looking.

Basic Build;

4.125" Dart SHP Block with 350 Mains
AFR 195 Eliminator Competition 75cc Heads with heat crossover
Callies Compstar 3.875" Crank
Scat 6" Pro Mod Rods with ARP 2000 bolts
530/530 @ 230/238 with a 112 lobe Hydraulic Roller(It was actually spec'd for a 396 SBC)
Weiand Stealth Dual Plane that was Exude-a-Honed to match the Ports
Barry Grant 650 CFM Mechanical Secondary Carb
Moroso Stroker Pan

Not a lot of Machining of the Pan rails with these rods.

On the Engine Dyno, the results are

560 Peak HP @ 5900
583 Peak Torque @ 4500

Ought to be a good street Engine, which is what I was going for. I know the Cam is too small, but it was paid for! Thanks!
Old 04-18-2016, 02:59 PM
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583 peak torque?......that's going to scream!!!
Old 04-18-2016, 04:43 PM
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76strokervette
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Excellent numbers! I hope you saved some money for tires.

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