91lxnos
11-04-2008, 12:31 PM
So anybody running them? fully cnc'ed they seem to flow around 317 at a cost of around 1400bucks! I read and was told they are designed after the vic jr head just thought I would get some oppinions......
Procomp Complete Assembled CNC Aluminum Cylinder Heads 64cc
SKU: PC3041
Description:
CNC Porting- Combustion Camber, Exhaust and Intake Ports all fully CNC Machined!! CNC machined piston and combustion chambers offer superior control over flame travel and a quench area, and allow easy and accurate duplication of reverse and positive domes CNC ported heads eliminate human error and variation from port to port that is commonly found in "HAND PORTING". Unsurpassed repeatability from one cylinder head to another. Combustion chambers are exact in volume - so every cylinder has the same compression ratio. Each port is exactly the same cfm - so every cylinder can reach the same power potential. Each port is the same cross section - so every cylinder can reach its true RPM potential. CNC machining produces ports and chambers to within tolerances of no more than .002".
356-A Aluminum Alloy Heat Treated to T-6 Specifications
Large 225cc CNC Ported Intake Runners
20 degree valve angle
Bronze Valve Guides
Hard valve seats
Machined for screw in studs and guide plates
64cc combustion chambers
Large 80cc CNC Ported exhaust ports
Drilled for 1/2" head bolts & will fit 302 or 351W blocks
Machined to accept large diameter dual valve springs
Seats Machined for 2.05"/1.600" valve
Completely assembled using Competition Premium Dual Springs and 2.05/1.6" valve package. Check these features out!!
(Roller) Dual Spring; 150lbs @ 1.800 405lbs @ 1.200 .675 max lift 99524-16
(Available for Mech Flat) Dual Spring; 132lbs @ 1.800 291lbs @ 1.250 99523-16
Superduty 21-4N SS one piece valve package 2.05"Int, 1.60"Ex .100 long
10º Chrome Moly Steel Race Retainers
10° Chrome Moly Steel Superlocks
1 set (16) spring seats (protects aluminum head from valve springs)
1 set SBF guide plates
1 set 7/16" rocker studs
Procomp Complete Assembled CNC Aluminum Cylinder Heads 64cc
SKU: PC3041
Description:
CNC Porting- Combustion Camber, Exhaust and Intake Ports all fully CNC Machined!! CNC machined piston and combustion chambers offer superior control over flame travel and a quench area, and allow easy and accurate duplication of reverse and positive domes CNC ported heads eliminate human error and variation from port to port that is commonly found in "HAND PORTING". Unsurpassed repeatability from one cylinder head to another. Combustion chambers are exact in volume - so every cylinder has the same compression ratio. Each port is exactly the same cfm - so every cylinder can reach the same power potential. Each port is the same cross section - so every cylinder can reach its true RPM potential. CNC machining produces ports and chambers to within tolerances of no more than .002".
356-A Aluminum Alloy Heat Treated to T-6 Specifications
Large 225cc CNC Ported Intake Runners
20 degree valve angle
Bronze Valve Guides
Hard valve seats
Machined for screw in studs and guide plates
64cc combustion chambers
Large 80cc CNC Ported exhaust ports
Drilled for 1/2" head bolts & will fit 302 or 351W blocks
Machined to accept large diameter dual valve springs
Seats Machined for 2.05"/1.600" valve
Completely assembled using Competition Premium Dual Springs and 2.05/1.6" valve package. Check these features out!!
(Roller) Dual Spring; 150lbs @ 1.800 405lbs @ 1.200 .675 max lift 99524-16
(Available for Mech Flat) Dual Spring; 132lbs @ 1.800 291lbs @ 1.250 99523-16
Superduty 21-4N SS one piece valve package 2.05"Int, 1.60"Ex .100 long
10º Chrome Moly Steel Race Retainers
10° Chrome Moly Steel Superlocks
1 set (16) spring seats (protects aluminum head from valve springs)
1 set SBF guide plates
1 set 7/16" rocker studs