AFR 210cc SBC LT Eliminator Racing Cylinder Head
Powerful and Proven Standard Valve and Stud Racing Head
These
reasonably priced AFR 210cc intake port small block Chevy angle
plug 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 combustion chambers and 80cc
exhaust ports with a 3/4” thick head deck (ideal for nitrous
or blower applications). Standard
valves are lightweight 8mm 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 to 400 cid engines in bracket drag cars, sportsman
oval trackers, and highly modified street class cars operating between
3000 and 7500 rpm (higher rpm ranges possible depending on combination
of parts).The 210cc aluminum cyilnder heads are available in either standard or spread
port exhaust. No special parts are required (see footnotes here). Dual valve cover bolt pattern is standard. Exhaust port and bolt pattern are raised .250 over GM L98 cyilnder heads, this rarely affects header or chassis fitment.
210cc SBC Aluminum Cylinder Head Street Flow Chart
Tested on 4.060 Bore
210cc SBC Aluminum Cylinder Head Comp. Flow Chart
Tested on 4.060 Bore
Basic Package Components
100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 5-angle Valve Job
AFR #7255
Bead Lock Intake Valve, 2.080" x 5.006" Overall Valve Length
AFR #7254
Bead Lock Exhaust Valve, 1.600" x 5.024" Overall Valve Length
AFR #8000
PAC Racing Spring 1.550" OD Roller Dual Valve Spring, 225 lbs on seat, .710" maximum lift, Max .050 duration 260°
AFR #8511
Manley 10° 4140 Chrome Moly Retainers
Specifications, Features, and Optional Supporting Components
65-70 ft. lbs
Head Torque w/ Moly Lube
55 ft. lbs
Rocker Stud Torque
Important:Do not port match your intake manifold to GM LT4 Gaskets as it does not precisely fit AFR heads. Don't use GM #12367777.
AFR #6310
SB Chevy Head Bolt Kit, ARP #134-3701
AFR #6305
SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301
GM LT4
Suggested Manifold
Autolite 3910
Spark Plug Starting Range
55cc to 65cc
Combustion Chambers
Can be cut to 1.750, no deeper
Spring Pocket
Standard GM L98
Valve Spacing
Standard GM L98
Rocker Arms
23°
Valve Angle
.008" per cc
Angle Mill (Milling options available)
.006" per cc
Flat Mill (Milling options available)
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