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  • $1,749.95

    Frankenstein Engine Development LS3/LSA Stage 2 Cylinder Heads

    GM LS3 Porting Service Manley Stainless Intake Valves: 2.180″ Manley Stainless Exhaust Valves: 1.600″ Intake Volume: 292cc Exhaust Volume: 93cc Chamber: 70cc Seats: Stock Iron Guides: Stock Powdered Metal Minimum Bore: 4.060 Intake Manifold Recommendation: FED Billet Low Pro Stock Rockers or Jesel. Smith Brothers Trunnion Upgrade Kit Recommended Springs: FED .660″ Dual LSX Spring Kit […]

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  • $1,399.95

    Frankenstein Engine Development LS3/LSA Stage 1 Cylinder Heads

    GM LS3 Porting Service Reuse Factory Intake Valves: 2.165″ Reuse Factory Exhaust Valves: 1.590″ Intake Volume: 288cc Exhaust Volume: 93cc Intake Peak Flow: 390 Exhaust Peak Flow: 260 Seats: Stock Iron Guides: Stock Powdered Metal Minimum Bore: 4.000″ Intake Manifold Recommendation: FED Billet Low Pro Stock Rockers or Jesel. Smith Brothers Trunnion Upgrade Kit Recommended Springs: […]

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  • Sale!
    $3,850.95

    Frankenstein Engine Development F310 287cc LS3 Rectangle Cylinder Heads

    Set of two (2) LS3 rectangle port cylinder heads. Heads are complete and assembled. Valve covers, oil fill cap, and doweled rocker stands included with purchase. 10° valve angle Solid, stainless 2.175” intake / 1.615” exhaust valves 4.065” minimum bore size FED titanium 0.660” lift Spring Kit  ¼” NPT water crossover ports 287cc equivalent. Additional Info […]

  • $204.95

    BRIAN TOOLEY RACING GEN III / IV LS GASKET KITS

    Gen III Includes: (1) Chevrolet Performance Gen III Valley Cover Gasket 12558178 (2) BTR LS1/LS2/LS3 Header Gasket BTR17944 (1) BTR LS Oil Pan Gasket BTR12350 (2) BTR LS Water Pump Gasket BTR30223 (1) BTR LS Front Cover Gasket BTR33904 (2) BTR LS Valve Cover Gasket BTR37683 (1) BTR LS Damper Seal BTR85673 (1) BTR LS […]

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  • Sale!
    $1,375.00 $1,325.00

    Trick Flow® GenX® 260 Cylinder Heads for GM LS7

    GenX® 260 square port LS7 aluminum cylinder heads from Trick Flow® are the best choice for your LS-based performance build for several reasons. The A356-T6 aluminum castings feature more material for increased rigidity and strength. Factory LS7 port locations, valve angles, and valve locations have been maintained to work with existing intakes and pistons. One-piece […]

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  • $35.00

    LS3 MULTILAYER HEAD GASKET

    Chevrolet Performance Multilayer Head Gasket for LS3 engines, can also be used with LS2 and 6.0 iron blocks as well as 5.3/4.8 blocks using large bore cylinder heads.  4.080″ bore, .051″ thick compressed, 5 layer  *PRICE IS FOR ONE HEADGASKET

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