Sale

Two Step Performance

L15B7 10.5:1 CR Shortblock Assembly

$5,999.00 $5,199.00 Save $800.00

SKU: L15B7-BC-Y

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Two Step Performance Built L15B7 Shortblock is a high-performance engine component specifically engineered for the 1.5L turbocharged 2016 and later Honda Civic models. This shortblock is meticulously built to support up to 600 wheel horsepower, with expectations of holding significantly more power, and has a history of reliable performance with no reported failures. The package includes a new bare block, crankshaft, and trigger wheel sourced directly from Honda. It is equipped with robust Brian Crower ProH2K Rods featuring ARP2000 Fasteners and custom-spec Traum 10.5:1 CR Forged Pistons. Additionally, it incorporates a Cylinder Support System with shims to fill the slots between cylinders, enhancing structural integrity. The assembly process involves a thorough bore, hone, jetwash, and micropolish, followed by precise assembly. Oil Squirter Blockoffs are included to increase oil pressure and extend engine life, and the rotating assembly is balanced for optimal performance. This product has an estimated build time of 8-10 weeks. US shipping costs are included in the price. Customization options are available, including the possibility to save approximately $1100 by supplying your own bare block and crankshaft as a core, subject to a $250 inspection fee which is forfeited if the supplied block is unusable. Two Step Performance offers a 1-year guarantee against cracked sleeves at or under 600wHP, provided the customer supplies vehicle setup details, a dyno sheet, and tuner information. This guarantee specifically excludes damage from catastrophic failures like dropped valves or broken rods and covers the original owner only.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandTwo Step Performance
Part NumberL15B7-BC-Y
CategoryEngines and Components

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

View Full Shipping Policy