Swap Blockâ„¢ Mock Up LS Engine Block GM truck electric fan Wheel Cylinder Expander Spring Included:

Wheel Cylinder Expander Spring Included: No

however with additons like a second 44mm wastegate and a larger diameter downpipe

That's the great thing

Chevelle Deluxe

Swap Blockâ„¢ Mock Up LS Engine Block GM truck electric fan Wheel Cylinder Expander Spring Included:The ORIGINAL Lightweight Steel LS Swap Block Engine: Gen III LS, Gen IV LS Years: 1997 2020 Our patent pending swap block uses our unique tab and slot design to provide accurate mounting positions of engine accessories and bolt ons. This distinctive design is lightweight and comes disassembled for ease of shipping and storage. Precision formed returns on all weight bearing components and tight tolerance slots create a rigid and accurate representation