v4.00AD/BBC
3.59in² MIN (throat)
122cc chamber
363cc runner
2.350 intake
1.880 exhaust
50º seats
4.600 fixture 
.200 154/107
.300 227/170
.400 285/205
.500 345/237
.600 390/262
.700 419/277
.800 434/293
.900 445/311
1.00 450/324
1.10 456/333

Same program as the iron casting.

Complete packages feature REV Valves, Nextek dual Springs, Manley Titanium Retainers, USA Locators, USA Machined Locks, viton seals, flow sheet, bagged and assembled. $4,995

UPGRADES: Prices  ADDED  to Packages

• Manley .900 Triple Springs $150
• Inconnel Exhaust Valves $160
• Titanium Intake Valves $800
• Titanium Exhaust Valves $800