what were your cam specs on this build? i am building a big block for my 4x4 dually lookin to lay down some numbers like that. i just picked up a set of the same heads just need to get my cam and valvetrain
Nice.. Did you go solid.. Hydr roller m,flat tappets.. ? I just had similar numbers with the motor I had built... I went hydr flat tappets.. My first attempt.. But I wonder how long the cam will hold up.. Now it's done and feel I should have went hydr roller for the extra 400$
Hydraulic roller cam is what we used. You can make good HP numbers with out the need of huge durations numbers with the hydraulic roller cam. Keep's the engine very very drivable for the customer.
This motor went into my '79 Chev short box - this is the second engine CNC has done for me - previously they built a 421 SBC stroker for my Boss Hoss bike - this BB is a tire shredder!!! With 3.25 gears, 33X21.50X15 MT on the back - it smokes them at 30mph - from a stop - smokes them them trhough 1st and 2nd and a nice chirp into 3rd-----awesome motor. And like my 421 SB, it is tight, dry, smooth and is a daily driver - best of all - it runs on 91 octane all day long :)
i'm in the process of building a 496 rite now any reccomidations on cam?
vertrider75 5 months ago
@vertrider75
Give us a call 800-341-1528 or 605-692-1697 we can get you set up with a good cam for your combination.
cncmotorsports 5 months ago
what were your cam specs on this build? i am building a big block for my 4x4 dually lookin to lay down some numbers like that. i just picked up a set of the same heads just need to get my cam and valvetrain
jonesblitzkrieg 1 year ago
@jonesblitzkrieg
The camshaft was a hydraulic roller, it was one of our custom grinds.
cncmotorsports 1 year ago
Nice.. Did you go solid.. Hydr roller m,flat tappets.. ? I just had similar numbers with the motor I had built... I went hydr flat tappets.. My first attempt.. But I wonder how long the cam will hold up.. Now it's done and feel I should have went hydr roller for the extra 400$
Cleelopez 1 year ago
@Cleelopez
@Cleelopez
Hydraulic roller cam is what we used. You can make good HP numbers with out the need of huge durations numbers with the hydraulic roller cam. Keep's the engine very very drivable for the customer.
cncmotorsports 1 year ago
This motor went into my '79 Chev short box - this is the second engine CNC has done for me - previously they built a 421 SBC stroker for my Boss Hoss bike - this BB is a tire shredder!!! With 3.25 gears, 33X21.50X15 MT on the back - it smokes them at 30mph - from a stop - smokes them them trhough 1st and 2nd and a nice chirp into 3rd-----awesome motor. And like my 421 SB, it is tight, dry, smooth and is a daily driver - best of all - it runs on 91 octane all day long :)
grumpy159 1 year ago