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Instruction Sheets for Part Number AFR-1510
AFR 205cc LS1 Mongoose Cylinder Heads
Cylinder Heads, Street Porting, Aluminum, Assembled, 66cc Chamber, 205cc Intake, Chevy, Small Block, LS, Pair
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Estimated Ship Date: Dec 22, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
1510
Part Type:
Product Line:
Summit Racing Part Number:
AFR-1510
Combustion Chamber Volume (cc):
66
Intake Runner Volume (cc):
205cc
Exhaust Runner Volume (cc):
84cc
Cylinder Head Style:
Assembled
Cylinder Head Material:
Cast aluminum
Camshaft Style:
Hydraulic roller
Intake Port Shape:
Cathedral
Intake Valve Diameter (in.):
2.020 in.
CNC-Machined Combustion Chamber:
Yes
CNC-Machined Intake Runner:
Yes
CNC-Machined Exhaust Runner:
Yes
Combustion Chamber Style:
Heart
Intake Port Location:
Standard
Exhaust Port Shape:
Oval
Exhaust Port Location:
Standard
Spark Plug Style:
Angle
Intake Valves Included:
Yes
Exhaust Valves Included:
Yes
Exhaust Valve Diameter (in.):
1.600 in.
Valve Springs Included:
Yes
Maximum Valve Lift (in.):
0.600 in.
Outside Diameter of Outer Spring (in.):
1.290 in.
Damper Spring Included:
Yes
Number of Springs Per Valve:
Dual
Retainers Included:
Yes
Retainer Material:
Titanium
Locks Included:
Yes
Lock Style:
7 degree
Valve Stem Seals Included:
Yes
Rocker Arm Studs Included:
No
Rocker Arms Included:
No
Rocker Arm Nuts Included:
No
Guideplates Included:
No
Valve Cover Mounting Style:
Centerbolt
Accessory Bolt Holes Drilled:
Yes
Valve Guides Included:
Yes
Valve Guide Material:
Bronze
Valve Seats Machined:
Yes
Valve Seat Machine Style:
3-angle
Valve Seat Material:
Ductile iron
Cylinder Head Color:
Natural
Steam Holes Drilled:
No
Oiling Style:
Through pushrod
Machined for O-Ring:
No
Heat Crossover:
No
Remanufactured:
No
Quantity:
Sold as a pair.
Notes:
Requires minimum 3.900 in. diameter bore size for intake valve clearance. These cylinder heads do not have provisions for perimeter bolt valve cover. Cylinder heads are street ported.
CARB EO Number(s):
Emissions:
California EO Approved
AFR 205cc LS1 Mongoose Cylinder Heads
AFR 205cc LS1 Mongoose cylinder heads offer 301 cfm at .600 in. lift, an incredible 70 cfm increase over the stock casting, creating incredible port velocity and performance. These cylinder heads have 100 percent CNC-ported chambers, A356 aluminum castings, and high-quality components. Other structural features include Air Flow Research's trademark 3/4 in. thick head deck, reinforced rocker stud bosses, along with thick wall runners that provide unparalleled durability. An exclusive combustion chamber design with double quench pad area helps the LS engines generate huge low and mid-lift airflow numbers. Put the ferocity of a mongoose under the hood of your ride with these 205cc LS1 Mongoose cylinder heads from AFR.
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Some parts are not legal for use in California or other states with similar laws / regulations
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