Click on image to zoom
88958665 - LS6 CNC Ported Cylinder Head - Replaced By 88958622
This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.
Availability: Replaced By 88958622
If you have a 4.8,5.3,5.7 or 6.0L Gen II (LS6 design) engine and want to improve the power output, bolt on a new set of new GM performance Parts Ported LS6 heads. These heads have the same CNC porting as the 88958622 race heads, but the deck has been planed just enough to maintain the production 65cc combustion chamber volume and 10.5: compression ratio. Loaded with premium hollow stem valves,chromium silicone ovate wire valve springs and the rest of the quality LS6 parts. These heads will support 500+ h.p.
- Complete Cylinder Head with springs and valves.
- Price shown is for 1 cylinder head
- Combustion chamber volume 65cc
- Intake runner volume 250cc
- Exhaust runner volume 85cc
- Intake valve diameter 2.00"
- Exhaust valve diameter 1.55"
- Intake valves are lightweight hollow stem design
- Exhaust valves are sodium filled for improved cooling
- CNC Port work done by Lingenfelter
- Special LS6 valve springs good for .570" lift
- Item Requires Shipping
- 27.0 lbs.
Total Reviews (0)
Write the First Review!
You must login to post a review.
May We Suggest
- We don’t just want your business today. We want to EARN your business for LIFE!
- USA Owned, Operated & Employed
- Installers & Resellers Click Here to Apply
We Specialize In:
- GM LS Conversions
- Engine & Trans Combo Kits
- Unique Ready to Run Engines
- Have a question?
- to Email our Sales & Tech Staff
- 888-748-4655 Mon-Fri 8AM-6PM EST Sat 9AM-5PM
- Click above for 24/7 Live Chat Service.