Description:
This is our double throwdown, all out version of a conventional BBC head. The ORIGINAL Pro series conventional head others try to copy but can't come close. Fully custom built to your application these are built one set at a time, hand blended, flow bench tuned and designed for all out big block competition. No other BBC head even comes close.

If you're building an NMCA pro stock, 10.5" outlaw, twin turbo, or any all out big block then this is the head for you! This is THE NOS head to have.

Fully hard anodized versions available for all out Marine use !

Specifications:

> Raised intake port
> Strong .500" thick deck
> Raised Rocker Cover Rail
> Ex Raised .620" Over Stock
> Super Strong Casting
> Flows 490 cfm Int Out of the Box, 350 cfm ex.
> 2.4" x 1.84" Titanium Valves Standard
> 2.45" or 2.375" Intake Upgrade Available
> Copper Alloy valve seats
> Bronze 5/16 or 11/32 Valve Guides
> 110cc chamber can be milled to 92cc
> 4.5" Bore Minimum
> Uses T&D shaft rocker system with one piece bar for a VERY stable valve train.
> 522" to 632" custom built to your application
> 60+ hp over Sportsman version

Call for custom quote.