Compression Ratio: 8.5:1 with 118cc Heads
Pistons: Forged - Dish - 15.4cc
Crankshaft: Steel Crank - 4.250" Stroke and H-Beam 6.385" Rods
- Description
- Engine Specs
- Warranty
Built for big horsepower and boost, the BBC 540 Power Adder Short Block is designed to be a strong foundation for supercharged, turbocharged, or nitrous combinations. This short block features a fully forged rotating assembly with forged pistons, H-beam rods, and a forged crankshaft, along with a heavy-duty 4-bolt main block for added strength and durability. With an 8.5:1 compression ratio designed for 118cc cylinder heads, this setup is ideal for high-power builds that need reliability under extreme conditions. Whether you’re building a street machine or a race car, these 540 short blocks are built to handle serious power.
Description:
- Compression Ratio: 8.5:1 with 118cc Heads
- BluePrint Engines Forged Crank
- BluePrint Engines Forged Pistons
Block:
- BluePrint Engines High Strength Cast Iron Block
- Manufactured and Machined in the USA!
- Mech Fuel Pump Provision: Yes
- 1-Piece Rear Main Seal
- Splayed 4-Bolt Main
- Standard Deck
- 4.500" Bore
Rotating Assembly:
- BluePrint Forged Crankshaft
- 4.250" Stroke
- Forged H-beam 6.385" Connecting Rods
- Forged Pistons - 15cc Dish
- Internally Balanced Front and Rear
Blocks
- BluePrint Engines High Strength Cast Iron Block
- Manufactured and Machined in the USA!
- Mech Fuel Pump Provision: Yes
- 1-Piece Rear Main Seal
- Splayed 4-Bolt Main
- Standard Deck
- 4.500" Bore
Rotating Assembly
- BluePrint Forged Crankshaft
- 4.250" Stroke
- Forged H-beam 6.385" Connecting Rods
- Forged Pistons - 15cc Dish
- Internally Balanced Front and Rear
Better Than the Rest.
The satisfaction of our customers is our highest priority at BluePrint Engines. Every engine we build is assembled with premium components, balanced to within two grams, and dyno-tested to verify real horsepower and torque before it leaves our facility.
All BluePrint products include warranty protection designed specifically for how they're used. Our complete crate engines carry our industry-leading 30-month / 50,000-mile warranty, offering the confidence and peace of mind serious builders expect. Other BluePrint products—including bare blocks, marine engines, transmissions, race applications, and cylinder heads—feature warranty coverage tailored to their intended use and operating conditions.
For full terms and specific coverage by product category, download our warranty guide below. It contains complete details, limitations, and instructions for warranty registration and claims.
Already Own this engine?
Protect your investment by registering your warranty today. Register below to ensure coverage and stay up to date on important service information.
Register NowEVERY BLUEPRINT ENGINE ACES THE DYNO TEST
We make sure we hit our target horsepower and proper torque with every crate engine. We use an advanced computerized balancer in our in-house dyno testing rooms to get our rotating assemblies within two grams, ensuring silky smooth power over the entire RPM range. That’s precisely why our engines sound and run better than our competitors.
All specs, zero speculation: A comprehensive, dyno-generated printout showing your critical engine specs will accompany your delivered engine — every time. No more guessing or wondering what your installed engine’s real-world peak horsepower and torque ratings actually are. Any doubters in the crowd? Simply flash ‘em your exact engine’s dyno results.