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.
All S&S engines using TCSA crankcases are available exclusively through G2 Motorsports. 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. Natural finish only. Turn key options, assembled or unassembled, etc.
S&S TCSA Large Displacement Engines |
|||||
Displacement |
Bore |
Stroke |
Chassis Style |
Part No. |
MSRP |
145” |
4.375” |
4.8125” |
1999-’06 Big Twin |
31-9754 |
Call |
145” |
4.375” |
4.8125” |
1984-’99 Big Twin |
31-9755 |
Call |
1-800-841-7827
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