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![Aluminum High Performance Cylinder Head for GM LS3 and L92 Engines 252cc Runner [69.4cc Chamber]](https://www.jegs.com/images/mini_750/0/059/059-2ct13s1.jpg)
Product Discontinued
ATK ENGINESPART NUMBER: 059-2CT13S1
Aluminum High Performance Cylinder Head for GM LS3 and L92 Engines 252cc Runner [69.4cc Chamber]
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Aluminum High Performance Cylinder HeadFits GM LS3 and L92 6.0L and 6.2L Engines 252cc Intake Runner, 69.4cc Chamber 2.160 in. Intake and 1.600 in. Exhaust Valves Dual Springs to 0.650 in. Lift Assembled Sold Individually
A fully assembled aluminum performance head for LS3 and L92 builds that have outgrown the factory casting. The 252cc rectangular port runner and 2.160 in. intake valve move considerably more air than stock, and the dual spring package supports up to 0.650 in. of lift, so an aggressive camshaft can go in without a separate spring upgrade.
ATK Engines 2CT13S1 Aluminum Performance Cylinder Head Features:
- 252cc intake runner and 78.8cc exhaust runner with a round exhaust port.
- 69.4cc combustion chamber.
- 2.160 in. intake and 1.600 in. exhaust valves at a 12 degree angle, rolled 3 degrees.
- Dual valve springs rated to 0.650 in. maximum lift, 370 lbs. open and 142 lbs. seat pressure.
- Chromemoly retainers, 7 degree locks and Viton valve stem seals installed.
- Manganese bronze valve guides with 5-angle machined chrome nickel seats.
Part TypeCylinder Head
BrandATK ENGINES
Part CategoryPerformance Parts
Cylinder Head MaterialAluminum
Valve Spring Retainer MaterialChromemoly Steel
Exhaust Runner Volume78.8 cc
AssembledYes
Fuel TypeGas
Valve Locks IncludedYes
Valve Spring Maximum Lift0.650 in
Intake Runner Volume252 cc
Intake Valve Angle12 deg
Valve Seals IncludedYes
Valve Seat MaterialChrome Nickel
Number Of Springs Per ValveDual
Valve Springs IncludedYes
Exhaust Port ShapeRound
QuantitySold Individually
Cylinder Head TypeOHV
Intake Valve Diameter2.160 in
Valves IncludedYes
Valve Guide MaterialManganese Bronze
Combustion Chamber Volume69.4 cc
Exhaust Valve Angle12 deg
Rocker Arm Studs IncludedNo
Part FitmentSemi Universal
Valve Lock Angle7 deg
Exhaust Valve Diameter1.600 in
Vendor Part Number2CT13S1
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
