9318 317 Series Aluminum Cylinder Heads for Big Block Chevy

Name: 9318 317 Series Aluminum Cylinder Heads for Big Block Chevy
Brand: PROMAXX PERFORMANCE
SKU: 723-9318
Price: 2209.00 USD
Availability: InStock

^$2,209⁰⁰

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317 Series Aluminum Cylinder Heads

317cc Intake Port Volume

Big Block Chevy
As-Cast
317cc Intake Ports
119cc Combustion Chamber
2.30'' Intake / 1.88'' Exhaust Valves
7/16'' Rocker Arm Studs
.600'' Max Lift
Steel Retainers
Assembled, 2/pkg

PROMAXX Performance Maxx Series big block Chevy cylinder heads are custom designed to satisfy demands of the big block Chevy world, while retaining high-quality craftsmanship and reasonable prices. Available assembled or bare, these heads feature ultra-smooth 356 T-6 aluminum castings with hand-blended valve bowls, efficient chamber designs, 5-angle valve jobs, and diamond-honed bronze valve guides. Assembled heads include 21-4N swirl-polished valves, springs, retainers, 7/16 in. rocker studs, guide plates, and seals. Level up your ride with a pair of PROMAXX Performance Maxx Series big block Chevy cylinder heads.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

ProMaxx heads have started a revolution in the performance world. They have custom designed a head to meet the demands of the Big Block Chevy world, while keeping the quality high and the price reasonable. These BB-Chevy heads come in an As-Cast series or Full CNC-Ported series. The As-Cast series features ''as-cast'' runners and combustion chambers with hand blended valve bowls. The Full CNC-series heads have professionally machined ports and combustion chambers that flow and perform as good as or better than some of the best cylinder heads in the industry. Basic components include U.S. made bronze valve guides, and ProMaxx 5-angle valve job. Assembled heads include 21-4N stainless valves, springs, retainers, 7/16'' rocker studs, guide plates, and viton seals (Bare heads do not include these items).

Features:

A356-T6 Aluminum Castings
Efficient Chamber Design
5-Angle Competition Valve Job
Diamond-Honed Bronze Guides
Available with As-Cast or Full CNC'd Ports and Chambers
Sold in Pairs, 2/pkg.

JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.