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12:1 COMPRESSION
Our 400" LSR Shortblock is a proven combination to get more cubic inches and power for your ride
CAN BE CONFIGURED TO RUN ON DIRECT OR PORT INJECTION - OR BOTH
Displacement: 390" Bore: 4
Piston pin bores measured & adjusted for application
Naturally Aspirated LS 427 Longblock with Kinsler Stack Injection 12:1 COMPRESSIONThis combination screams racecar just looking at it! We paired our already proven NA combination with the most iconic intake there is! Kinsler's ITB set up helps flow air to this 700HP beast! We pair this combo with our Brodix BR7's. Displacement: 427" Bore: 4. 125" Proven Power Rating: 700HP+ NA Stroke: 4. 000" Compression Ratio: 11. 5: 1 Rod Length 6. 125" Cylinder Head Compatibility: LS7 Oil System Type: Wet Block: Dart Machinery SHP Pro