feature list
- 14.5 degree Pontiac w/ 4.840"
bore spacing
• 4.600” bore chamber 77cc
• Intake valve 2.480
• Exhaust valve 1.920”
• Int. flow 548 cfm @ .900” w/28"
H2O
• Exh. flow 378 cfm @ .900” w/28”
H2O
• Int. runner vol. (high oval port) 548 cc
• Exh. runner vol. 204cc
• Int. valve angles 14.5 degree x 4 degree
• Flow tested ST-600 @ 25” H2O converted
to 28” H2O
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At SAR all head
porting is done in-house. We use state of the art 5 axis CNC
vertical machining center.
This unique cylinder head was designed by Sonny's for 500+
cu. in. engines. These cylinder heads are available in 4.840
and 4.900 bore spacing. We offer the heads with ductile
seats and replaceable bronze drive-in step guides. These
Pontiac castings has incorporated the heart shape combustion
chambers and spread port design intake runners.
We have designed a one-piece rocker
bar for stability and endurance. SAR can also supply you
with custom sheetmetal billet rail valve covers and cast
or sheetmetal intakes.
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Actual int. square in 2.00x2.63 = 5.26-3/4=4.77
4.840 Race ready fully assembled heads $8,375.00
4.900 Race ready fully assembled heads $9,025.00
Blown alcohol applications $8,710.00
The above
head components feature the following components: Titanium valves, Manley titanium
retainers, bead locks, PSI springs. |
