Factory CNC Ported LS3 Heads

[Keith Tedford]

These heads 88958758 are LS3 over the counter heads that have been CNC ported form the factory. Has anyone here used them and with what results?

 

[Manny@Dasilva]

These heads 88958758 are LS3 over the counter heads that have been CNC ported form the factory. Has anyone here used them and with what results?

Nice heads , about a 25RWHP gain over stockers .

 

[Keith Tedford]

Thanks

Thanks Manny. I won't be doing anything right away but it is nice to know what options are out there.

 

[HLN A55]

I used ported stock 243 heads with stock valves on my LS-6 and made 425 / 400 at the wheels with just a cam/injectors and a stock intake (of course tune and headers). Would expect the ported LS-3 heads to perform even better than that. Not a bad option considering the price of new heads vs a port job. Prob about 1/3 the price. Maybe only scarifying an extra 25-30 RWHP but manny would know better from experience.