TSP Built L15B7 Shortblock | 16-21+ Civic 1.5T & Si

Fits:

• 2016 - 2021 Honda Civic 1.5T
• 2017 - 2020 Honda Civic Si

8-10 week build time, or 6 weeks if you supply your own crankshaft. Shipping is included in the price. Discount codes cannot be applied due to already-aggressive pricing; TSP Reward codes are accepted.

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Built for up to 600 whp with zero reported failures to date - and TSP expects it holds meaningfully more than that in practice. Every build starts with a new bare block, crankshaft, and trigger wheel from Honda, paired with your choice of Saenz or Brian Crower rods and JE forged pistons (factory Si compression ratio standard).

The Cylinder Support System now includes shims to fill the slots between cylinders, and every block is bored, honed, jetwashed, micropolished, and fully assembled in-house, with oil squirter blockoffs included and optional rotating assembly balancing.

Want to save around $1,000? Supply your own bare block and crankshaft as a core. Alternate components are available on request - contact TSP directly for a custom build.

Sleeve Guarantee

If you crack a sleeve within 1 year at or under 600 whp, TSP reimburses the full price of the CSS process, provided:

• You supply your vehicle setup, dyno sheet, and tuner info
• The failure isn't from catastrophic events like a dropped valve or broken rod
• You're the original, non-transferring owner

Features

• New Honda bare block, crankshaft, and trigger wheel
• Saenz or Brian Crower rods, JE forged pistons
• Cylinder Support System with cylinder shims
• Built for 600+ whp, backed by a 1-year sleeve guarantee