Early 2003-2008 5.7L Gen III Hemi engines had smaller intake ports & these adapters allow the installation of Intake manifolds w/ the larger ports to fit on these Early engines.

More From This Category

ICON Piston 4.0 in. Bore, For Chevrolet SB V8 Gen III/IV (LS2/LS3/LSA/LS9/L99 6.0/6.2L Block)

ICON Piston 4.0 in. Bore, For Chevrolet SB V8 Gen III/IV (LS2/LS3/LSA/LS9/L99 6.0/6.2L Block)

$2,002.97

ICON Piston, 3.78 in. Bore, 1.5mm, 1.5mm, 3.0mm in. Ring Grooves, For GM LS327 5.3L with 3.622 in. stroke, .STD Oversized, w/ Rings, Each

ICON Piston, 3.78 in. Bore, 1.5mm, 1.5mm, 3.0mm in. Ring Grooves, For GM LS327 5.3L with 3.622 in. stroke, .STD Oversized, w/ Rings, Each

$1,425.17

COMP Cams Cam / Lifters / Valvetrain High Energy Hydraulic Flat Advertised Duration 268 / 268 Li

COMP Cams Cam / Lifters / Valvetrain High Energy Hydraulic Flat Advertised Duration 268 / 268 Li

$1,127.54

KB Piston, 4 in. Bore, 1/16, 1/16, 3/16 in. Ring Grooves, For Ford 408W Rod 6.200 D-Cup 27.5cc 2V, .040 Oversized, w/ Rings, Each

KB Piston, 4 in. Bore, 1/16, 1/16, 3/16 in. Ring Grooves, For Ford 408W Rod 6.200 D-Cup 27.5cc 2V, .040 Oversized, w/ Rings, Each

$1,045.10

COMP Cams Cam/Lifters/Timing, XE Computer Controlled, Hydraulic Roller, Advertised Duration 271/279, Lift .591/.601, For Chevrolet Big Block, Kit

COMP Cams Cam/Lifters/Timing, XE Computer Controlled, Hydraulic Roller, Advertised Duration 271/279, Lift .591/.601, For Chevrolet Big Block, Kit

$2,106.23