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.

More From This Category

Dart Cylinder Head, Iron Eagle, 72cc Chamber, 180 Intake Runner, ST 2.05/1.60/1.437, Each

Dart Cylinder Head, Iron Eagle, 72cc Chamber, 180 Intake Runner, ST 2.05/1.60/1.437, Each

$1,201.24

View
Dart Cylinder Head, Big Chief 18 Deg Prog 381, Each

Dart Cylinder Head, Big Chief 18 Deg Prog 381, Each

$2,807.85

View
Dart Cylinder Head, Bare, Iron Eagle, 64cc Chamber, 200 Intake Runner, APVJ2.02/1.60 Platinum, Each

Dart Cylinder Head, Bare, Iron Eagle, 64cc Chamber, 200 Intake Runner, APVJ2.02/1.60 Platinum, Each

$811.97

View
Dart Cylinder Head, Assembly, 320 Full Port, 2.250/1.900/1.550D 4.600, Each

Dart Cylinder Head, Assembly, 320 Full Port, 2.250/1.900/1.550D 4.600, Each

$4,375.89

View
Dart Cylinder Head, Pro1 Chevrolet Small Block, 215.00 CC Port, 64.00 CC Chamber, Each

Dart Cylinder Head, Pro1 Chevrolet Small Block, 215.00 CC Port, 64.00 CC Chamber, Each

$1,415.93

View
Dart Cylinder Head, Bare, 320 Super Mod, 2.300/1.880/4.500, Each

Dart Cylinder Head, Bare, 320 Super Mod, 2.300/1.880/4.500, Each

$3,308.54

View