S&S Cycle #31-0172A - Engine Case - 3.750" Bore w/Stock Stud Pattern - 88A Engine Type - Wrinkle Black -Twin Cam

Not for '06 Dyna.

Large cam chest allows cam lift up to 0.675" without clearancing.

Includes S&S crankcase breather reed valve designed to eliminate oil carry-over and oil scavenging problems.

Features

• Replacement Twin Cam "A" engine cases for stock H-D chassis only (carb and EFI)
• Features greater overall strength than stock crankcases
• Strong, dependable Timken®-style sprocket shaft bearings
• All passages between the crankcase cam support plate are O-ring sealed
• Compatible with most stock components
• Rear motor mount bolts directly to the stock transmission; fully compatible with the stock primary, charging system, and other stock components
• Made in the USA
• This project requires a skilled technician. It is the responsibility of the person assembling the parts to check all clearances and assembly specifications.

Specs