How good do stock ported heads work out? 241's I think...
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How good do stock ported heads work out? 241's I think...
Hey I have an 01 SS and im tryin to figure out what im gonna do wit the car.. I wanna do a H/C setup as a DD car. Now, how good can our factory heads flow compared to some aftermarket ones? Is the cost savings worth the power loss? Do I need to get different valves? I know I need different springs, depending on the cam... anything else? I wanna make the most power possible, but i dont wanna go over the top where it would be annoying driving it daily... and I think that would take alot cause I drive around in the chevelle and that thing is nasty... any advice?
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Originally Posted by BadBowtie03
Hey I have an 01 SS and im tryin to figure out what im gonna do wit the car.. I wanna do a H/C setup as a DD car. Now, how good can our factory heads flow compared to some aftermarket ones? Is the cost savings worth the power loss?
A good porter can get 300 cfm from a stock LS1 head with stock valves.
You'll want to upgrade the springs though. It's going to come down to how much money you put into porting.
Personally I wouldn't even run an aftermarket head without going over it with a sanding roll and blending the valvejob anyway.
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I will be doing this all at once.. thats why i was wondering about the injectors and all... I will be working with the stock 346 short block... Im gonna do cam,heads, headers and all the stuff at one time and get it dyno tuned.. Thanks for the replies!
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Originally Posted by BadBowtie03
Hey I have an 01 SS and im tryin to figure out what im gonna do wit the car.. I wanna do a H/C setup as a DD car. Now, how good can our factory heads flow compared to some aftermarket ones? Is the cost savings worth the power loss? Do I need to get different valves? I know I need different springs, depending on the cam... anything else? I wanna make the most power possible, but i dont wanna go over the top where it would be annoying driving it daily... and I think that would take alot cause I drive around in the chevelle and that thing is nasty... any advice?
You don't have tp give up power by going with your GM castings, give me a call or shoot me a PM. I'd be happy to help you out with your project.
Ask for Harold
512-257-0222
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Take a look at my setup in the sig. I haven't done the blower or intercooler setup yet, and I'm at around 390-400rwhp now and it drives like stock around town, freeway, etc. It should be the same after the blower and looking to get 450-500 range Daily driver with little sacrifice of gas milage so long as you don't womp on it.
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You can definately make good power out of 241 castings. I would go with a little bit bigger intake valve & stay stock exhaust valve. That configuration will allow good flow without breaking the bank! We have both just cnc & cnc / deck / valvejob combos so feel free to shoot me a IM for pricing!
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Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com