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ProMaxx Performance 8401
ProMaxx Performance GM LS Series Gold Dual Valve Spring Kit Includes: 16 ProMaxx Dual Gold Springs
GM LS Series Gold Dual Valve Spring Kit
Includes:16 ProMaxx Dual Gold Springs 16 Titanium Retainers 32 Super 7 Machined Locks 16 .505" Machined Spring Bases 16 Viton® Rubber Seals
Includes:
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$376.00
Estimated to ship direct from manufacturer on 05/03/24, pending manufacturer availability.
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ProMaxx Performance 8501
ProMaxx Performance GM LS Series Xtreme Dual Valve Spring Kit Includes: 16 ProMaxx Xtreme Dual Gold Springs
GM LS Series Xtreme Dual Valve Spring Kit
Includes:16 ProMaxx Xtreme Dual Gold Springs 16 Titanium Retainers 32 Super 7 Machined Locks 16 .505" Machined Spring Bases 16 Viton® Rubber Seals
Includes:
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$401.00
(1)
Estimated to ship direct from manufacturer on 05/03/24, pending manufacturer availability.
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ProMaxx Performance 8401K
ProMaxx Performance GM LS Series Gold Dual Valve Spring Kit Includes: Gold Dual Valve Spring Kit
GM LS Series Gold Dual Valve Spring Kit
Includes:Gold Dual Valve Spring Kit LS Spring Tool Flex Air Valve Holder Tool
Includes:
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$454.64
Estimated to ship direct from manufacturer on 05/03/24, pending manufacturer availability.
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ProMaxx Performance GM LS Series Xtreme Dual Valve Spring Kit Includes: Xtreme Dual Valve Spring Kit
ProMaxx Performance 8501K
ProMaxx Performance GM LS Series Xtreme Dual Valve Spring Kit Includes: Xtreme Dual Valve Spring Kit
GM LS Series Xtreme Dual Valve Spring Kit
Includes:Xtreme Dual Valve Spring Kit LS Spring Tool Flex Air Valve Holder Tool
Includes:
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$479.64
Estimated to ship direct from manufacturer on 05/03/24, pending manufacturer availability.
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Valve Spring & Retainer KitGM LS Series
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$240.00
Estimated to ship direct from manufacturer on 04/29/24, pending manufacturer availability.
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$444.00
Estimated to ship direct from manufacturer in 24hrs
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Spring Kit
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$215.00
Estimated to ship direct from manufacturer on 04/30/24, pending manufacturer availability.
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Head Spring Kit Bbc .850
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$894.29
Estimated to ship direct from manufacturer on 05/03/24, pending manufacturer availability.
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Spring & Retainer Kit
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$269.00
Estimated to ship direct from manufacturer on 05/03/24, pending manufacturer availability.
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ProMaxx Performance 9217S
ProMaxx Performance Project X Assembled Aluminum Cylinder Heads for Small Block Chevy (215cc)
Project X Aluminum Cylinder HeadsSmall Block Chevy Intake Runner: 215cc Spark Plug: Straight Valves: 2.08 in. Int./1.60 in. Exh. w/8mm Stems Valve Angle: 23° Combustion Chamber: 64cc Valve Springs: 145 lbs. @ 1.800 in. Set of 2
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$1,429.00
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ProMaxx Performance 9207
ProMaxx Performance Project X Assembled Aluminum Cylinder Heads for Small Block Ford (210cc)
Project X Aluminum Cylinder HeadsSmall Block Ford Intake Runner: 210cc Spark Plug: 14mm .750 Valves: 2.08 in. Int./1.60 in. Exh. w/11/32 Stems Valve Angle: 20° Combustion Chamber: 56cc Valve Springs: 145 lbs. @ 1.80 in. Set of 2
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$1,560.00
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ProMaxx Performance 9216S
ProMaxx Performance Project X Assembled Aluminum Cylinder Heads for Small Block Chevy (215cc)
Project X Aluminum Cylinder HeadsSmall Block Chevy Intake Runner: 215cc Spark Plug: Straight Valves: 2.08 in. Int./ 1.60 in. Exh. w/8mm Stems Valve Angle: 23° Combustion Chamber: 64cc Valve Springs: 115 lbs. @ 1.800 in. Set of 2
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$1,308.00
Estimated to ship direct from manufacturer on 05/30/24, pending manufacturer availability.
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ProMaxx Performance 9217A
ProMaxx Performance Project X Assembled Aluminum Cylinder Heads for Small Block Chevy (215cc)
Project X Aluminum Cylinder HeadsSmall Block Chevy Intake Runner: 215cc Spark Plug: Angled Valves: 2.08 in. Int./ 1.60 in. Exh. w/8mm Stems Valve Angle: 23° Combustion Chamber: 64cc Valve Springs: 145 lbs. @ 1.800 in. Set of 2
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$1,429.00
Estimated to ship direct from manufacturer on 04/29/24, pending manufacturer availability.
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ProMaxx Performance 9196A
ProMaxx Performance Project X Assembled Aluminum Cylinder Heads for Small Block Chevy (200cc)
Project X Aluminum Cylinder HeadsSmall Block Chevy Intake Runner: 200cc Spark Plug: Angled Valves: 2.08 in. Int./1.60 in. Exh. w/8mm Stems Valve Angle: 23° Combustion Chamber: 64cc Valve Springs: 115 lbs. @ 1.800 in. Set of 2
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$1,296.00
Estimated to ship direct from manufacturer on 04/26/24, pending manufacturer availability.
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ProMaxx Performance 9186S
ProMaxx Performance Project X Assembled Aluminum Cylinder Heads for Small Block Chevy (185cc)
Project X Aluminum Cylinder HeadsSmall Block Chevy Intake Runner: 185cc Spark Plug: Straight Valves: 2.02 in. Int./1.60 in. Exh. w/8mm Stems Valve Angle: 23° Combustion Chamber: 64cc Valve Springs: 115 lbs. @ 1.800 in. Set of 2
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$1,287.00
(1)
Estimated to ship direct from manufacturer on 05/01/24, pending manufacturer availability.
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ProMaxx Performance 9216A
ProMaxx Performance Project X Assembled Aluminum Cylinder Heads for Small Block Chevy (215cc)
Project X Aluminum Cylinder HeadsSmall Block Chevy Intake Runner: 215cc Spark Plug: Angled Valves: 2.08 in. Int./ 1.60 in. Exh. w/8mm Stems Valve Angle: 23° Combustion Chamber: 64cc Valve Springs: 115 lbs. @ 1.800 in. Set of 2
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$1,308.00
Estimated to ship direct from manufacturer on 05/03/24, pending manufacturer availability.
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ProMaxx Performance 9208
ProMaxx Performance Project X Assembled Aluminum Cylinder Heads for Small Block Ford (210cc)
Project X Aluminum Cylinder HeadsSmall Block Ford Intake Runner: 210cc Spark Plug: 14mm .750 Valves: 2.08 in. Int./1.60 in. Exh. w/8mm Stems Valve Angle: 20° Combustion Chamber: 56cc Valve Springs: 230 [email protected] in. Set of 2
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$1,833.00
Estimated to ship direct from manufacturer on 05/06/24, pending manufacturer availability.
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ProMaxx Performance 9206
ProMaxx Performance Project X Assembled Aluminum Cylinder Heads for Small Block Ford (210cc)
Project X Aluminum Cylinder HeadsSmall Block Ford Intake Runner: 210cc Spark Plug: 14mm .750 Valves: 2.08 in. Int./1.60 in. Exh. 11/32 Stems Valve Angle: 20° Combustion Chamber: 56cc Valve Springs: 115 lbs. @ 1.80 in. Set of 2
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$1,560.00
Estimated to ship direct from manufacturer on 06/05/24, pending manufacturer availability.
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ProMaxx Performance 9218A
ProMaxx Performance Project X Assembled Aluminum Cylinder Heads for Small Block Chevy (215cc)
Project X Aluminum Cylinder HeadsSmall Block Chevy Intake Runner: 215cc Spark Plug: Angled Valves: 2.08 in. Int./ 1.60 in. Exh. w/8mm Stems Valve Angle: 23° Combustion Chamber: 64cc Valve Springs: 230 lbs. @ 1.900 in. Set of 2
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$1,581.00
Estimated to ship direct from manufacturer on 05/03/24, pending manufacturer availability.
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ProMaxx Performance 2151
ProMaxx Performance Cast Iron Small Block Chevy Vortec Cylinder Heads Assembled
Cast Iron Small Block Chevy Vortec Cylinder HeadsAssembled Straight Plug Intake Ports: 185cc Combustion Chambers: 64cc Valves: 2.02" Intake, 1.60" Exhaust Hyd. Flat Tappet Springs Pair
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$1,022.00
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ProMaxx Performance 9440
ProMaxx Performance 9440 440 MAXX Aluminum Cylinder Heads for Big Block Chrysler (B/RB)
440 MAXX Aluminum Cylinder HeadsBig Block Chrysler (B/RB) 210cc Intake Ports 84cc Combustion Chambers 2.14" Intake, 1.81" Exhaust Valves .600" Lift Hyd. Roller Valve Springs As-Cast Ports & Chambers Assembled, 2/pkg.
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$1,439.00
(2)
Estimated to ship direct from manufacturer on 04/29/24, pending manufacturer availability.
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ProMaxx Performance 9187S
ProMaxx Performance Project X Assembled Aluminum Cylinder Heads for Small Block Chevy (185cc)
Project X Aluminum Cylinder HeadsSmall Block Chevy Intake Runner: 185cc Spark Plug: Straight Valves: 2.02 in. Int./1.60 in. Exh. w/8mm Stems Valve Angle: 23° Combustion Chamber: 64cc Valve Springs: 145 lbs. @ 1.800 in. Set of 2
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$1,407.00
Estimated to ship direct from manufacturer on 05/14/24, pending manufacturer availability.
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ProMaxx Performance 9218S
ProMaxx Performance Project X Assembled Aluminum Cylinder Heads for Small Block Chevy (215cc)
Project X Aluminum Cylinder HeadsSmall Block Chevy Intake Runner: 215cc Spark Plug: Straight Valves: 2.08 in. Int./ 1.60 in. Exh. w/8mm Stems Valve Angle: 23° Combustion Chamber: 64cc Valve Springs: 230 lbs. @ 1.900 in. Set of 2
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$1,581.00
Estimated to ship direct from manufacturer on 05/02/24, pending manufacturer availability.
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ProMaxx Performance 9208T
ProMaxx Performance Project X Assembled Aluminum Cylinder Heads for Small Block Ford (210cc)
Project X Aluminum Cylinder HeadsSmall Block Ford Titanium Retainers Intake Runner: 210cc Valves: 2.08 in. Int./1.60 in. Exh. w/8mm Stems Valve Angle: 20° Combustion Chamber: 56cc Valve Springs: 230 lbs. @ 1.900 in. Set of 2
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$2,083.00
Estimated to ship direct from manufacturer on 05/03/24, pending manufacturer availability.
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ProMaxx Performance 9170
ProMaxx Performance 9170 MAXX Series Aluminum Cylinder Heads for Big Block Ford
MAXX Series Aluminum Cylinder HeadsAs-Cast 170cc Intake Ports 72cc Combustion Chambers 2.09'' Intake / 1.66'' Exhaust Valves .600'' Max Lift Hydraulic Flat Tappet Springs Stainless Steel Valves Assembled, 2/pkg
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$1,796.00
Estimated to ship direct from manufacturer on 04/29/24, pending manufacturer availability.
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ProMaxx Performance 9241
ProMaxx Performance 440 MAXX Aluminum Cylinder Heads Big Block Chrysler (B/RB)
440 MAXX Aluminum Cylinder HeadsBig Block Chrysler (B/RB) 240cc Intake Ports 84cc Combustion Chambers 2.19" Intake, 1.81" Exhaust Valves .650" Lift Hyd. Flat Tappet Valve Springs 100% CNC'd Ports and Chambers Assembled, 2/pkg.
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$2,260.00
Estimated to ship direct from manufacturer on 04/29/24, pending manufacturer availability.
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ProMaxx Performance 9197A
ProMaxx Performance Project X Assembled Aluminum Cylinder Heads for Small Block Chevy (200cc)
Project X Aluminum Cylinder HeadsSmall Block Chevy Intake Runner: 200cc Spark Plug: Angled Valves: 2.08 in. Int./1.60 in. Exh. w/8mm Stems Valve Angle: 23° Combustion Chamber: 64cc Valve Springs: 145 lbs. @ 1.800 in. Set of 2
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$1,414.00
Estimated to ship direct from manufacturer on 05/03/24, pending manufacturer availability.
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ProMaxx Performance 3162
ProMaxx Performance XXTREME Assembled 260 cc Rectangle Port Cylinder Heads for LS3 w/4 in. Min. Bore w/63 cc Combustion Chambers
XXTREME Assembled Cylinder HeadsLS3 w/4 in. Min. Bore 260 cc Rectangle Ports 63 cc Combustion Chambers 2.165 in. Int./1.60 in. Exh. Valves Valve Angle: 11° Valve Springs: .650 in. Max Lift Retainers: Titanium Set of 2
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$2,561.00
Estimated to ship direct from manufacturer on 05/03/24, pending manufacturer availability.
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ProMaxx Performance 9242
ProMaxx Performance 440 MAXX Aluminum Cylinder Heads Big Block Chrysler (B/RB)
440 MAXX Aluminum Cylinder HeadsBig Block Chrysler (B/RB) 240cc Intake Ports 84cc Combustion Chambers 2.19" Intake, 1.81" Exhaust Valves .750" Lift Mech. Flat Tappet Valve Springs 100% CNC'd Ports and Chambers Assembled, 2/pkg.
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$2,387.00
Estimated to ship direct from manufacturer on 04/29/24, pending manufacturer availability.
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ProMaxx Performance 9175
ProMaxx Performance 9175 MAXX Series Aluminum Cylinder Heads for Ford Small Block
MAXX Series Aluminum Cylinder HeadsAs-Cast 180 cc Intake Ports 60cc Combustion Chambers 2.02'' Intake / 1.60'' Exhaust Valves 3/8'' Rocker Arm Studs .600" Max Lift Hydraulic Roller Springs Steel Retainers Assembled, 2/pkg
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$1,232.00
(1)
Estimated to ship direct from manufacturer on 04/29/24, pending manufacturer availability.
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