XXTREME 260 LS3 Rectangle Large Bore
(SOLD IN PAIRS)
$1,682.00 – $3,035.00
The XXTREME LS 260 is the big boy on the block for as-cast LS Head technology. This head is for large bore power w/ a 63cc Combustion Chamber. Dyno results produce 700 HP plus on pump gas.
Requires 4″ bore minimum and LS3 intake rocker.
Features:
- Pro designed ports & chambers
- 260cc as-cast port designed and tested in the USA
- Ultra-smooth 356-T6 Aluminum Casting
- 5 angle valve job
- 63CC Chamber size or additional options available
- 11 Degree Valve Angle
- Diamond honed guides
- Built-in raised valve cover rail
- Monster .750 deck thickness
- Billet LS3 OEM Rocker Stand
- For use with standard or 6 bolt pattern
- Large spring pockets
- Utilizes 2.165 intake valve and 1.60 exhaust valve (Larger sizes available upon request)
- Multiple spring options
- Assemblies include: 21-4N stainless 1pc swirl polished back cut valves
- Machined and Assembled in the USA
- Outperforms other comparable heads in the industry
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