ATK High Performance #HP33 383 Stroker 379HP/460TQ

[ATKENGINES]

This engine has a Hyd Roller Cam 220/224 @50 495/502 112LSA. Stout little engine combo!

[jibirish11321]

What are the specs on the cam?

I have a similar set up in a s-10 pickup - 383, 10.7 to 1, un touched vortecs comp springs and retainers, edelbrock performer rpm air gap, holley 650, comp cams magnum 270hr .500 lift 215* at .050 i.i.r.c.

[streetvandal]

cool...I work for PROFORMANCE POWERTRAIN and were sister companies with ATK and we aslo have dyno rooms...and yes with no porting and just good intake and headers and cam i have seen more than 400hp on vortec heads

[Querencias7]

ATK, nice! Would these be DART Vortec heads by any chance? Are the upgraded springs dual? Which cam... Thanks in advance, and for the video too.

[ATKENGINES]

They are a flowtech 1 5/8 header

[ISpeedRacer2001]

what headers are those?

[704Ch3vyBoi]

very nice engine i know you are not going to give me cam specs but is it a custom grind cam or comp cam? because i going to use lunati brand of cam and i want that amount of torque or better dont really care about hp especially with a heavy street car.

[ATKENGINES]

No porting to these. Stock valves, upgraded springs and a nice cam is all it takes.

[704Ch3vyBoi]

I know yall had to put work to them votrec heads like porting?