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Old 01-18-2022, 04:43 PM
Mike Davis's Avatar
Mike Davis Mike Davis is offline
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I am a big fan of the 4" stroke engines. If it was my build I would go 4". Moves the rpm range up a little bit and kills a little bottom end.

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  #2  
Old 01-18-2022, 07:36 PM
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Formulabruce Formulabruce is offline
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Quote:
Originally Posted by Mike Davis View Post
I am a big fan of the 4" stroke engines. If it was my build I would go 4". Moves the rpm range up a little bit and kills a little bottom end.
yup kills the Torque in the RANGE YOU DRIVE........
Reason why the dynos don't even care what happens below 4,000 RPM
but who REALLY Drives ABOVE 4,000 RPM for longer than 15 seconds?
Yup, overbuilding "happens"
And after all that, the HP is only a estimation, even on a dyno......
How many folks have switched out their Torque converters for Horsepower converters?

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Last edited by Formulabruce; 01-18-2022 at 07:44 PM.
  #3  
Old 01-18-2022, 07:58 PM
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Mike Davis Mike Davis is offline
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Quote:
Originally Posted by Formulabruce View Post
yup kills the Torque in the RANGE YOU DRIVE........
The 4" stroke has plenty of low end torque for any street car.
I think it would be a lot easier on the stock drivetrain the OP is running.

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65 GTO, Tiger Gold, Nostalgia Super Stock 421, 2-Carter AFB carbs, Stock Suspension, 3550lbs Full Exhaust-- 9.70's@135

66 GTO (Retired race car)
421 CID
Multiple NSCA/NMCA World Champion

66 GTO 389 3x2, 4 speed, 3.90 gear, Montero Red 33K original Miles
67 GTO 2dr Post, 428, Tri Power, 3.55 Gears
80 Trans Am Black SE Y84 W72 WS6
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