Generation IV Internal Engine - 408 Build TSP PRC "As-Cast" 225cc Heads?
08-09-2012, 04:32 PM
I'm doing my first motor build which is a 408 but i'm torn between what heads to run. TSP recommended the LS3's as a great flowing budget head, but they also said their "As-Cast" heads are great cathedral heads as well. Does anyone have any experience with them?
08-09-2012, 04:38 PM
Very little info on tech about those heads, just say something in another section about them an after a few post one person found something about them on a 01 zo6. ill shoot you the link
08-09-2012, 04:40 PM
PRC As Cast Heads Dyno Results on 01 Z06
search for this, i couldn't get the link
Rise of the Phoenix
08-09-2012, 04:41 PM
You'll get more responses in the III Generation Internal Engine section. I would talk in depth with Texas Speed in regards to your goals and usage for the car. They can lead you in the right direction.
08-13-2012, 12:59 AM
If you dont have a budget im running tsp ls3 250cc aftermarket heads on my 408. so far im at 520rwhp and could get more.
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