4P PRO 163 CNC Head

$1,850.00 – $2,775.00

Features & Benefits

V2 Pro 163 Started 11/10/2018 and is 400 CFM and a new intake design. All heads prior to that are V1.
Slow-cut precision 5-axis cnc porting, second to none on machining quality.
Utilizes a 4 Piston 50 degree 37mm valve which flows better and weighs 7 grams less per valve than other 37s on the market.
Precision CNC valve job using the latest NEWEN Fixed Turning technology
Full length bronze manganese guide for valve stability.
Our intake port has very little turbulence and great velocity when compared to our competitors. You can hear the difference on the bench!
Unique power producing exhaust port design.
Our heads are all shipped with installation tips, a sheet of desired clearances for setting up your engine, and a flow chart from your head.

All heads require a core! You can send us your head, or purchase one from us at the current market price.

Valve Spring and Retainer Kit

Clear

SKU: N/A Categories: Cylinder Heads, K-Series

All Motor Street
USAC Midget
High HP open class Road Race
2.4L+ Displacement Naturally Aspirated Engines
E85, Methanol, Gasoline
Not recommended for high boost applications, but some turbo cars run them with HUGE success.
If you are competitively racing and you are running one of our competitor’s heads, make the switch and let the results do the talking

V2 Pro 163 Started 11/10/2018 and is 400 CFM and a new intake design. All heads prior to that are V1.
Slow-cut precision 5-axis cnc porting, second to none on machining quality.
Utilizes a 4 Piston 50 degree 37mm valve which flows better and weighs 7 grams less per valve than other 37s on the market.
Precision CNC valve job using the latest NEWEN Fixed Turning technology
Full length bronze manganese guide for valve stability.
Our intake port has very little turbulence and great velocity when compared to our competitors. You can hear the difference on the bench!
Unique power producing exhaust port design.
Our heads are all shipped with installation tips, a sheet of desired clearances for setting up your engine, and a flow chart from your head.

All heads require a core! You can send us your head, or purchase one from us at the current market price.

Weight	40 lbs
Dimensions	21 × 14 × 14 in
Valve Spring and Retainer Kit	None, 4P High Performance +$595, 4P Advanced Performance +$725, Supertech H1021D +$465, Ferrea S10100 +$750, Ferrea S10149 SFWD Turbo +$925, 4P PSI Pro Stock +$850