07-06-2009, 01:54 PM
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Join Date: Nov 2004 Location: Shakopee, Mn
Posts: 114
Car: Only Pontiac Engine: 421 in progress Transmission: Auto | AFR SBC 227cc 75cc Eliminator Cylinder Heads 1067 Reduced price!
The Baddest 23° Standard Port Head You Can Buy!
High flowing AFR 227cc intake port small block Chevy angle plug aluminum cylinder heads are available in three stages of performance. The Race Ready version features 100% CNC ported intakes while the higher flowing Competition Package features 100% CNC ported intakes with greater detail. Both come with 100% CNC ported 65cc or 75cc combustion chambers and 80cc exhaust ports with a 3/4" thick head deck (ideal for nitrous or blower applications). In addition AFR also offers the "as cast" Stage 1 heads for 227cc performance on a budget. Standard valves are lightweight 8mm 2.100" intake and 1.600" exhaust with AFR's hardened ductile iron interlocking valve seats. The 227 has 60/40 valve spacing and piston valve pockets should be checked. The exceptional flow characteristics and 23 degree valve angle make this the perfect head for 350 to 434 cid engines in drag cars, sprint cars, and late model oval trackers operating from 4500 rpm and up. The 227cc aluminum cylinder heads are available in either standard or spread port exhaust. AFR offset stud girdles are the only special parts required. Some applications require shaft mount rockers or .050 offset rocker arms for durability and reliability of valve train components. Standard rockers can be used but the intake rocker arm will be at a slight angle and the roller tip will not be perfectly centered on the valve tip. Not recommended for street use, unless a shaft mount rocker system is used. Dual valve cover bolt pattern is standard. The exhaust ports are raised .250" over a standard GM L-98 cylinder head.
These are the *NEW* Eliminator version of AFR's 227 cc aluminum cylinder heads which include the all new LS1 style lightweight valvetrain with 8mm valves, lightweight springs, matching retainers and solid roller springs which are good for .710 max lift. Includes 100% CNC ported combustion chambers, intake ports, and exhaust ports along with a competition 3 angle valve job. Includes 7/16 rocker studs, 5/16 guide plates, 1.540" OD solid roller dual valve springs 225 lbs. on seat, .710" maximum lift 2.100" intake valves, 1.600" exhaust valves, 75cc combustion chambers, 80cc exhaust ports, 10 degree 4140 chrome moly steel retainers and 10 degree valve locks with bronze guides. | | |
Last edited by Phoenix8936; 07-13-2009 at 08:41 AM.
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