S&S is offering 43/8" bore large displacement engines to racers and custom bike builders. These engines have the same general specifications as the original Tribute 145 engines, but now are offered in a version for 1999-up chassis.
The TCSA 126" engines are available unassembled and in natural finish only. Fuel system options include S&S Variable Fuel Injection, G-Extreme® or an S&S Super D carburetor. Fuel systems must be purchased separately. 
S&S 126" or 145" displacement engines 126" (4.375" bore x 4.187" stroke) 145" (4.375" bore x 4.813" stroke) TCSA cases for 1984-'99 or 1999-'06 chassis S&S oil pump for 1999-'06 big twins .640 gear drive cams - 126" .675 gear drive cams - 145" Pressed together crankshaft assembly. Big Fin "B2" cylinder heads. S&S Variable Fuel Injection or S&S Super D carburetor. (sold separately.) Available separately with air horns. Turn key options; assembled, powdercoat, polished, etc. are also available.

Star Racing's 145" - best 1/4 mile time 10.20 @ 130 MPH, 200 RWH, stock belt, stock tranny
Click the pic below to watch our bike outrun a GSXR-1000
Our Customer's 145's

1-800-841-7827
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