Nick Arias Jr
Introduces The Ultimate in LS Chevy Street Performance!
Nick Arias Jr. Racing Components presents their “LS-AH” Chevy Hemi® cylinder head for G.M. LS series blocks. The Arias LS-AH head kit will bolt on to any G.M. LS factory or aftermarket block, turning your run-of-the-mill LS wedge into a hemispherical-chambered hero.
Arias Jr's cast aluminum Chevy Hemi® head is poured from 356 T-6 alloy and features full water jacketing throughout. Offered are two choices of chamber design; full round hemisphere or pro-stock inspired figure-8 shape with quench pads - both with central spark plug location for maximum combustion effectiveness.
High-efficiency ports flow up to 380 cfm for intake and 268 cfm exhaust @ 28”, out of the box and 409 cfm intake and 301 cfm exhaust with CNC porting. Stainless steel 2.260” intake and 1.600” diameter exhaust valves are standard and work in unison with manganese bronze guides and heat treated ductile iron seats.
These LS-AH Hemi® heads can accept valve springs up to 1.650” diameter, based on application requirements. Tool steel springs are standard with custom race springs optional.
The Arias LS-AH head kit utilizes shaft style roller rocker arm assemblies with oiling up through the pushrods like stock LS. Each rocker arm is investment cast 4340 steel with dual Timken needle bearings and H-13 tool steel lash adjusting screws.
Crowning this head-turning assembly are cast aluminum finned valve covers, showcasing the spark plug holes running through the middle…where they belong! Covers are supplied with breathers, oil fill caps, o-ring seals, spark plug tubes and hardware. Choose either black wrinkle, hi-luster polished or plain finish to top off the package.
Additional LS-AH kit components consist of a carburated/e.f.i. or intercooled supercharger manifold, push rods, LS OEM-style header flanges and all related fasteners and gaskets. This package is ready for the street rodder having the desire to stand out from the crowd or the hardcore racer looking for the horsepower and torque of a genuine Hemi for their LS series foundation.
Order your top-quality Nick Arias Jr. Racing Compontents head kits, engines and other world-class high-performance products online today from Fred Blanchard or call 310-323-RACE (7223)
Download the
LS HEMI Flyer
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LS HEMI KIT Flyer
www.nickariasjr.com
This from Arias's site. I do not have a cost but you can contact them to get it.
There is a figure 8 port design as well as the hemi that can be machined in the heads. It all depends on what you are looking for in performance.
pat W