Showing 1–12 of 26 results

  • $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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  • $1,259.95

    Frankenstein Engine Development 243/799 Cathedral Stage 1 Cylinder Heads

    GM LS1 Cathedral Porting Service Reuse Factory Intake Valves: 2.000″ Reuse Factory Exhaust Valves: 1.550″ Intake Volume: 224cc Exhaust Volume: 82cc Intake Peak Flow: 302 Exhaust Peak Flow: 240   Stock Chamber Seats: Stock Iron Guides: Stock Powdered Metal Minimum Bore: 3.900 Intake Manifold Recommendation: FED LowPro Stock Rockers. Smith Brothers Trunnion Upgrade Kit Recommended Springs: […]

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  • $1,399.95

    Frankenstein Engine Development 5.3 L83 LT Stage 1 Cylinder Heads

    Reuse Factory Intake Valves: 1.930″ Reuse Factory Exhaust Valves: 1.550″ Intake Volume: 260cc Exhaust Volume: 114cc Chamber: 57cc Seats: Stock Iron Guides: Stock Powdered Metal Minimum Bore: 3.900 Stock Rockers. Trunnion Upgrade Kit Recommended (Sold Separately) Springs: FED .660″ Dual LSX Spring Kit with Titanium Retainers Includes: Teardown Wash CNC Port CNC Valve Job FED […]

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  • Sale!
    $3,999.95 $3,850.95

    Frankenstein Engine Development F110 247cc Cathedral Cylinder Heads

    Set of two (2) LS1 cathedral 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 2.135” intake / 1.615” exhaust valves 4.030” minimum bore size FED titanium 0.660” lift Spring Kit  ¼” NPT water crossover ports 247cc  equivalent. Additional Info […]

  • Sale!
    $3,999.95 $3,850.95

    Frankenstein Engine Development F110 265cc Cathedral Cylinder Heads

    Set of two (2) LS1 cathedral 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 2.135” intake / 1.615” exhaust valves 4.030” minimum bore size FED titanium 0.660” lift Spring Kit  ¼” NPT water crossover ports 265cc  equivalent. Additional Info […]

  • 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 […]

  • Sale!
    $3,999.95 $3,850.95

    Frankenstein Engine Development F710 290cc LS7 Square Cylinder Heads

    Set of two (2) LS7 square 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 2.250” intake / 1.615” exhaust valves 4.125” minimum bore size FED titanium 0.660” lift Spring Kit  ¼” NPT water crossover ports 290cc equivalent. Additional Info […]

  • Sale!
    $3,999.95 $3,850.95

    Frankenstein Engine Development F715 294cc LS7 Square Cylinder Heads

    Set of two (2) LS7 square port cylinder heads. Heads are complete and assembled. Valve covers, oil fill cap, and doweled rocker stands included with purchase. 15° valve angle Solid, stainless 2.200” intake / 1.650” exhaust valves 4.125” minimum bore size FED titanium 0.660” lift Spring Kit  ¼” NPT water crossover ports 294cc equivalent. Additional Info […]

  • $1,899.95

    Frankenstein Engine Development Hemi 5.7 CNC Ported Cylinder Heads (set)

    Our process for these heads is the gold standard in the industry. Re-use stock valve. CNC ported. Precision valve job. Hand blend. PSI springs with Titanium retainers. Free shipping!

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  • $1,899.95

    Frankenstein Engine Development Hemi 6.1 CNC Ported Cylinder Heads (set)

    Our process for these heads is the gold standard in the industry. Re-use stock valve. CNC ported. Precision valve job. Hand blend. PSI springs with Titanium retainers. Free shipping!

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  • $1,949.95

    Frankenstein Engine Development Hemi 6.2 Hellcat CNC Ported Cylinder Heads (set)

    Our process for these heads is the gold standard in the industry. Re-use stock valve. CNC ported. Precision valve job. Hand blend. PSI springs with Titanium retainers. Free shipping!

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  • $1,949.95

    Frankenstein Engine Development Hemi 6.4 Apache CNC Ported Cylinder Heads (set) 🔍

    Our process for these heads is the gold standard in the industry. Re-use stock valve. CNC ported. Precision valve job. Hand blend. PSI springs with Titanium retainers. Free shipping!

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