$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

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PROMAXX Performance Maxx Series Big Block Ford Cylinder Heads

1.0 out of 5 stars 1 Customer Reviews

PROMAXX Performance Maxx Series big block Ford cylinder heads make upgrading or reviving your FE motor affordable. These heads feature ultra-smooth 356 T-6 aluminum
PROMAXX Performance Maxx Series big block Ford cylinder heads make upgrading or reviving your FE motor affordable. These heads feature ultra-smooth 356 T-6 aluminum casting, 5-angle valve jobs, precision CNC-machining, and diamond-honed bronze guides. Don't get stuck doing the typical upgrade/repair--kick it up a notch with a pair of professionally assembled PROMAXX Performance Maxx Series big block Ford cylinder heads. They also offer bare options.

Features, items, and specs:

* 170cc intake runners
* Hand-blended bowls
* Unshrouded chambers
* Large spring pockets
* Multiple valve sizes available
* Multip
PROMAXX Performance Maxx Series big block Ford cylinder heads make upgrading or reviving your FE motor affordable. These heads feature ultra-smooth 356 T-6 aluminum casting, 5-angle valve jobs, precision CNC-machining, and diamond-honed bronze guides. Don't get stuck doing the typical upgrade/repair--kick it up a notch with a pair of professionally assembled PROMAXX Performance Maxx Series big block Ford cylinder heads. They also offer bare options.

Features, items, and specs:

* 170cc intake runners
* Hand-blended bowls
* Unshrouded chambers
* Large spring pockets
* Multiple valve sizes available
* Multiple spring options
* Assemblies will include 21-4N one-piece swirl-polished back-cut valves

Results 1 - 1 of 1

Cylinder Heads, Maxx Series, Hydraulic Flat Tappet, Assembled, Aluminum, 170cc Intake Runner, Ford, FE, Big Block, Pair

Part Number: PMX-9170

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

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