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Kaase P-38 Canted Valve Small Block Ford Heads

 
  Small Block Ford Canted Valve Cylinder heads for Windsor Series engines.

P-38 Features:

  • Generates more power by means of canted, larger diameter inlet and exhaust valves; improved port velocities; deeper bowls with sweeping short turns in the intake and exhaust ports.

  • Accommodates original equipment intake manifolds and exhaust headers for convenience

  • Features intake valve angles of 8 x 4.5 degrees and exhaust of 10 x 4 degrees to increase air flow.

  • Introduces maximum clearance between intake valve and cylinder wall, even at low valve lift with standard bore. This attribute also boosts the performance of small camshafts.

  • Provides optional mounting holes for larger diameter headers as standard.

  • Actuates valves that open toward the cylinder centers, hence gases are less encumbered by shrouding effect of cylinder walls.

  • Equipped with Kaase P-38 cylinder heads, a modest camshaft, and an Edelbrock Junior intake, the 302, running on pump fuel and barely 9:1 compression ratio, easily generates 500hp @ 7500rpm.

  • Produces dyno numbers of 700 to 750hp on a mildly built 427.

P-38 Cylinder Head Specifications:

Chamber CNC machined: 60 cc
*Intake Runner Volume:*
240 cc
Exhaust Runner Volume:
86 cc
Intake Valve Diameter:
2.100
Exhaust Valve Diameter:
1.600
Intake Valve Length:
5.450
Exhaust Valve Length:
5.450
Intake Valve Angle:
8
Intake Valve Cant.:
4.5
Exhaust Valve Angle:
10
Exhaust Valve Cant.: 4
Valve Spring Diameter:
1.550
Valve Guide:
11/32

* Intake runner Volume CC can not be compared to other Windsor cylinder heads because of deeper valve bowl area.

* Valve Spring Installed height up to 2.000

Flow Chart as Delivered @ 28'' Superflow SF-1020 Pro Bench

Intake
.200
156 cfm

.300
219 cfm

.400 265 cfm

.500
297 cfm

.600
308 cfm

.700
309 cfm

.750
311 cfm



Exhaust .200
111 cfm

.300
142 cfm

.400
169 cfm

.500
185 cfm

.600
199 cfm

.700
208 cfm

.750
215 cfm


Flow Chart with Conventional port work @ 28'' Superflow SF-1020 Pro Bench
(not a raised port)

Intake
.200
163 cfm

.300
232 cfm

.400 285 cfm

.500
328 cfm

.600
348 cfm

.700
350 cfm

.750
355 cfm



Exhaust
.200
110 cfm

.300
153 cfm

.400
194 cfm

.500
222 cfm

.600
233 cfm

.700
238 cfm

.750
241 cfm

 


Pricing:

Kaase P-38 Cylinder Heads are available complete ready to install or as bare castings.
  • Complete assembled cylinder heads consist of Premium stainless steel valves, ARP Pro series rocker studs, Custom built guide plates, Competition Cams and Manley hardware, Manley Nextech valve springs on full roller cylinder heads, Pac or Competition Cams Bee Hive valve springs on hydraulic roller cylinder heads, flat tappet also available. $2500.00 pair.

  • Complete assembled cylinder heads come with Kaase cast P-38 valve covers and valve cover gaskets.
    • Bare P-38 cylinder heads are machined and ready to assemble. $795.00 each.
    • P-38 cast aluminum valve covers $99.00 pair.
    • Valve cover gaskets $40.00.