AFR 1057 - Small Block Chevy 210cc LT4 Eliminator Race Aluminum Cylinder Heads-pair
Race Ready CNC Porting LT4 Eliminator Heads
| Small Block Chevy 210cc LT4 Eliminator Race Basic Package Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
| Competition 5-Angle Valve Job | |
| Intake Valve, 2.080'' x 5.006'' o.a.l. | |
| Exhaust Valve, 1.600'' x 5.024'' o.a.l. | |
| 1.550'' OD Solid Roller Dual Valve Spring, 225 lbs. on seat, .710'' maximum lift, max RPM 6300-6500 | |
| 10º Manley 4140 Chrome Moly Retainers | |
| 10º Valve Locks | |
| 7/16'' Rocker Studs | |
| Adjustable 5/16'' Guide Plates | |
| Viton Valve Seals | |
| Hardened Spring Cups | |
| Intake Valve Seats | |
| Exhaust Valve Seats | |
| Bronze Valve Guides | |
| Small Block Chevy 210cc LT4 Eliminator Race Head Specifications | |
| Head Torque w/Moly Lube | 65-70 Ft. Lbs. |
| Rocker Stud Torque | 55 Ft. Lbs. |
| Intake Port Gasket, LT4 | AFR 033-6860 - DO NOT PORT MATCH Intake Manifold to Fel-Pro Gasket. |
| Exhaust Port Gasket | Fel Pro 375-1405 |
| Head Gasket | LT4 Fel Pro 375-1074 |
| Head Bolts & Studs | Standard ARP |
| Head Bolt Washers | Manley Standard |
| Stud Girdle | Standard |
| Suggested Manifold | LT4 |
| Spark Plug Starting Range | Autolite 3910 |
| Combustion Chambers | 58cc |
| Intake Port | 210cc |
| Exhaust Port | 80cc |
| Spring Pocket can be cut to 1.750, no deeper. | |
| Valve Spacing | Standard GM |
| Rocker Arms | Standard |
| Valve Angle | 23° |
| Angle Mill | .008'' per cc |
| Flat Mill | .006'' per cc |
| NOTE: | Flat and Angle mills might require a .120'' thick head gasket. |
These reasonably priced AFR 210cc intake port small block Chevy LT4 angle plug, reverse cooled cylinder heads are available in two stages of performance. The Race Ready version features 100% CNC ported intakes while the higher flowing Competition version features 100% CNC ported intakes with greater detail. Both come with 100% CNC ported 58cc combustion chambers (can be special ordered 55 to 65cc) and 80cc exhaust ports with a 3/4'' thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm diameter stem, 2.080'' intake and 1.600'' exhaust with AFR's hardened ductile iron interlocking valve seats. The exceptional flow characteristics, 23° valve angle, and standard valve spacing make this the perfect head for 350-400ci engines in bracket drag cars, sportsman oval track racers, and highly modified street class cars operating between 3000 and 7500 rpm (higher rpm ranges possible depending on combination of parts). No special parts are required. Dual valve cover bolt pattern is standard. Exhaust port and bolt pattern are raised .250'' (1/4'') over GM L98 cyilnder heads, this rarely affects header or chassis fitment. Made in USA.
210cc LT4 Eliminator Race Cylinder Head Features:
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