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Airflow Research (AFR)

AFR 260cc LS3 Mongoose Cylinder Heads

5.0 out of 5 stars 5 Customer Reviews

AFR 260cc LS3 Mongoose cylinder heads are 100 percent 5-axis, CNC-ported, and feature titanium retainers, A356 aluminum castings, and Pac Racing springs. These CARB
AFR 260cc LS3 Mongoose cylinder heads are 100 percent 5-axis, CNC-ported, and feature titanium retainers, A356 aluminum castings, and Pac Racing springs. These CARB certified heads require 4.000 in. or larger bore applications on up through 454 cu. in. engines operating at or below 7,000 rpm—and flow over 380 cfm at 0.700 in. lift and are designed primarily for street and strip applications. Other structural features include Air Flow Research's trademark 3/4 in. thick head deck, reinforced rocker stud bosses, and thick wall runners provide unparalleled durability. Use of AFR stud girdles and full roller rocker arms a
AFR 260cc LS3 Mongoose cylinder heads are 100 percent 5-axis, CNC-ported, and feature titanium retainers, A356 aluminum castings, and Pac Racing springs. These CARB certified heads require 4.000 in. or larger bore applications on up through 454 cu. in. engines operating at or below 7,000 rpm—and flow over 380 cfm at 0.700 in. lift and are designed primarily for street and strip applications. Other structural features include Air Flow Research's trademark 3/4 in. thick head deck, reinforced rocker stud bosses, and thick wall runners provide unparalleled durability. Use of AFR stud girdles and full roller rocker arms are required. When it comes to building power, start with these AFR 260cc LS3 Mongoose cylinder heads.

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AFR 260cc LS3 Mongoose Cylinder Heads 1840

AFR 260cc LS3 Mongoose Cylinder Heads 1840

AFR 260cc LS3 Mongoose Cylinder Heads 1840

Cylinder Heads, LS3, Aluminum, 260cc Intake Runner Volume, 95cc Exhaust Runner Volume, 6 Bolt, Pair

Part Number: AFR-1840

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Apr 30, 2026 if ordered today

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Estimated Ship Date: Apr 30, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ Precision Cast Chevy LS Cylinder Head SUM-162LS3255REC

Summit Racing™ Precision Cast Chevy LS Cylinder Head SUM-162LS3255REC

2 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/9/2026

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AFR 260cc LS3 Mongoose Cylinder Heads 1845

AFR 260cc LS3 Mongoose Cylinder Heads 1845

AFR 260cc LS3 Mongoose Cylinder Heads 1845

Cylinder Heads, LS3, Aluminum, 260cc Intake Runner Volume, 95cc Exhaust Runner Volume, Pair

Part Number: AFR-1845

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ Precision Cast Chevy LS Cylinder Head SUM-162LS3255REC

Summit Racing™ Precision Cast Chevy LS Cylinder Head SUM-162LS3255REC

2 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/9/2026

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