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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.
     

 


Jon Kaase Racing Engines, Inc.
735 West Winder Industrial Parkway
Winder, GA 30680

Phone: (770) 307-0241
Fax: (770) 307-0231

Email: JonKaaseRacing@gmail.com


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