Tuned Port Induction Specialties Inc.
In addition to its mail-order crate engine offerings, TPIS offers full tuning and dyno services for your EFI GM, and can supply computers and wiring for street rod applications as well. When looking at these engine packages, note that any camshafts may be replaced with other TPIS designs, aftermarket heads may be substituted, and displacement may be changed to suit a desired combination.
| 402CI LS LONG-BLOCK |
| COMPANY: | TPI Specialties Inc. |
| BLOCK: | LS2, aluminum, used |
| DISPLACEMENT: | 402ci (6.6L) |
| COMPRESSION RATIO: | 11.0:1 |
| CRANKSHAFT: | 4.000-inch, Callies, forged |
| RODS: | 6.125-inch, Manley Sportsmaster |
| PISTONS: | 4.005-inch, Manley, forged with offset pins |
| RINGS: | Speed-Pro file fit plasma-moly |
| ROD BEARINGS: | Clevite 77 |
| MAIN BEARINGS: | Clevite 77 |
| CAM BEARINGS: | Clevite 77 |
| BOLTS: | GM |
| HEADS: | GM LS6/LS2, aluminum, TPIS CNC-ported |
| HEAD GASKETS: | GM MLS |
| CAM: | TPIS ZL-15, hydraulic roller, 236/241 duration at .050, .600/.566-inch lift |
| LIFTERS: | GM |
| PUSHRODS: | Manley, 7.400-inch hardened one-piece 5/16 |
| ROCKER ARMS: | GM |
| VALVESPRINGS: | Manley with titanium retainers |
| INTAKE MANIFOLD: | no |
| THROTTLE BODY: | no |
| FUEL INJECTORS: | no |
| MAF: | no |
| WIRING HARNESS: | no |
| PCM: | no |
| CORE CHARGES: | block $250.00, heads $1,000.00 |
| WARRANTY: | 1 year (parts and labor) |
| PRICE: | $8,500.00 |
| COMMENTS: | Includes a Cloyes Hex-A-Just timing set. This is a longblock only, but can be upgraded to any level of completion. |