Loading... Please wait...Get the most out of your GM LT1 with Trick Flow's 430 HP GenX™ Top-End Engine Kits. These kits are carefully tuned to deliver the right amount of horsepower and torque. Take the time and guesswork out of designing a winning combination and save some hard-earned cash. GenX Top-End Kits for GM LT1 feature Trick Flow's GenX 185 heads to deliver increased power on naturally aspirated engines. These heads feature 54cc CNC-profiled and bowl-blended combustion chambers and Fast As Cast runners (185cc intake/67cc exhaust). You also get a hydraulic roller camshaft, pushrod length checker, roller rocker arms, head bolts, and a gasket set.
| Product Line: | Trick Flow® 430 HP GenX™ Top-End Engine Kits for GM LT1 |
| Part Type: | Cylinder Head Combos |
| Camshaft Included: | Yes |
| Intake Manifold Included: | No |
| Fuel Delivery Style: | Fuel injected |
| Timing Chain and Gears Included: | No |
| Lifters Included: | No |
| Gaskets Included: | Yes |
| Cylinder Head Style: | Assembled |
| Cylinder Head Material: | Aluminum |
| Cylinder Head Finish: | Natural |
| Combustion Chamber Volume (cc): | 54 |
| CNC-Machined Combustion Chamber: | Yes |
| Intake Runner Volume (cc): | 185cc |
| Exhaust Runner Volume (cc): | 67cc |
| CNC-Machined Intake Runner: | No |
| CNC-Machined Exhaust Runner: | No |
| Intake Port Location: | Standard |
| Exhaust Port Shape: | D-port |
| Exhaust Port Location: | Standard |
| Spark Plug Style: | Angle |
| Intake Valves Included: | Yes |
| Intake Valve Diameter (in): | 2.020 in. |
| Exhaust Valves Included: | Yes |
| Exhaust Valve Diameter (in): | 1.600 in. |
| Intake Valve Angle: | 21 |
| Exhaust Valve Angle: | 21 |
| Valve Springs Included: | Yes |
| Outside Diameter of Outer Spring (in): | 1.300 in. |
| Damper Spring Included: | Yes |
| Retainers Included: | Yes |
| Retainer Material: | Steel |
| Locks Included: | Yes |
| Lock Style: | 7 degree |
| Valve Stem Seals Included: | Yes |
| Valve Stem Seal Style: | Positive stop |
| Valve Stem Seal Material: | Viton® fluoroelastomer |
| Rocker Arms Included: | Yes |
| Rocker Arm Style: | Full roller |
| Rocker Arm Studs Included: | No |
| Rocker Arm Nuts Included: | Yes |
| Rocker Arm Nut Thread Size: | 3/8-24 in. |
| Guideplates Included: | Yes |
| Guideplate Pushrod Size: | 5/16 in. |
| Pushrods Included: | No |
| Valve Covers Included: | No |
| Accessory Bolt Holes Drilled: | Yes |
| Valve Guides Included: | Yes |
| Valve Guide Material: | Bronze |
| Valve Seats Machined: | Yes |
| Valve Seat Machine Style: | 3-angle |
| Valve Seat Material: | Ductile iron |
| Steam Holes Drilled: | No |
| Oiling Style: | Through pushrod |
| Machined for O-Ring: | No |
| Heat Crossover: | No |
| Cylinder Head Bolts Included: | Yes |
| Quantity: | Sold as a kit. |
| Notes: | Includes an adjustable 6.125 in. to 7.500 in. pushrod length checker. |
Head Combo, GenX™ Top-End, 430 hp/400 ft.-lbs. Torque, Chevy, Small Block, LT1, Kit