J37 CSS Block Build

This build can be performed on either a J32 or J35 block, based on your preference, and will include a J37 crankshaft and P2R J37 connecting rods to increase stroke for maximum displacement. We’ll choose the correct generation of the J-series block to ensure compatibility with your vehicle. After your order is placed, we’ll contact you to determine the ideal compression ratio for your specific application and confirm which block core will be used.

All CSS (Cylinder Support System) blocks will be bored and honed to 89.5mm for optimal performance and reliability.

Shipping Timeline: This block typically ships within 4-6 weeks.