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Description
BluePrint Engines Chev 400 511HP Base Long Block Adder Engine # BP4003CT1GM Small Block Compatible 400 c. i. Power Adder Engine 511 Horsepower Long Block SKU: BP4003CT1 Horsepower & Torque: 511 Horsepower 480 FT. LBS. Torque Cylinder Heads: BluePrint Engines Aluminum Cylinder Heads Compression Ratio: 9. 5: 1 Camshaft: Hydraulic Roller Cam . 555 Intake . 577 Exhaust Lift and 236 Intake 248 Exhaust Duration @ . 050 1130 LSA Pistons: Forged Crankshaft: Forged Steel Crank 3. 750" Stroke and Forged 6. 000" Rods This power adder
GM Small Block Compatible 400 c.i. Power Adder Engine - 511 Horsepower - Long Block
SKU: BP4003CT1
Horsepower & Torque: 511 Horsepower / 480 FT. LBS. Torque
Cylinder Heads: BluePrint Engines Aluminum Cylinder Heads
Compression Ratio: 9.5:1
Camshaft: Hydraulic Roller Cam - .555 Intake .577 Exhaust Lift and 236 Intake / 248 Exhaust Duration @ .050 - 1130 LSA
Pistons: Forged
Crankshaft: Forged Steel Crank - 3.750" Stroke and Forged 6.000" Rods
This power adder engine is engineered to handle any type of forced induction. Whether youre adding nitrous, a supercharger, or turbos, this long block has the strength and reliability to take the boost.
Description:
- Horsepower & Torque: 511 Horsepower / 480 FT. LBS. Torque
- Compression Ratio: 9.5:1
- Aluminum Heads
- Hydraulic Roller Cam
- Forged Steel Crank
- Forged Pistons
Block:
- BluePrint Engines High Strength Cast Iron Block
- Manufactured and Machined in the USA!
- 4-Bolt Main
- 4.125" Bore
- 1-Piece Rear Main Seal
- Mech Fuel Pump Provision: Yes
- Passenger Side Dipstick
- Drilled and Tapped for Clutch Linkage
Rotating Assembly:
- New BluePrint Forged Steel Crankshaft
- 3.750" Stroke
- 6.000" Forged Connecting Rods
- Forged Pistons
- Internal Front/ External Rear Engine Balance
- Dual Keyway Damper installed
Cylinder Heads:
- BluePrint Aluminum Cylinder Heads - HP8103
- 64cc Chamber
- 2.08" Intake / 1.60" Exhaust Valves
- 220cc Intake / 67cc Exhaust Runners
Cam Specs:
- Cam Type: Roller
- .555 Intake / .577 Exhaust Lift
- 236 Intake / 248 Exhaust Duration
- @.050-113 Degree Lobe Separation
- 1.6 Roller Rockers
Ignition Timing:
- 10-160 Initial and Total Timing 32-340 at 3500 RPM
Also Includes:
- Valve Covers
- Oil Pan
- Timing Cover
Notes:
- NEW BluePrint block manufactured and machined in the USA!
- Not for EGR.
- This engine is designed to be capable of running power adders - turbo chargers, Nitrous oxide, superchargers, blowers etc.
- Built with a Dual Keyway crankshaft. Balancer included.
- The performance aluminum cylinder heads on this engine feature a .500 raised port vs OEM.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 4
Cool as the other side of the pillow
Color: Gray, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
Good quality and keeps cool on side of pillow. Have to flip pillow for constant cooling is the ok only down side. Love the material as it is very soft and silky feel to it. Doesn't wrinkle over pillow and had some good color options. Easy to clean. Fair price for a good product
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Reviewed in the United States on January 11, 2026
★★★★★ 5
Love!
Color: Blue, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
Awesome cases! They really are cool to the touch. I didn’t sleep hot at all. I have a “cut-out” memory foam pillow, and this stretched around it perfectly. It is flexible enough that it doesn’t impede with the cut out. And while the material is “silky,” it doesn’t slide around the pillow while sleeping on it. The zipper feature is perfect. I washed and dried per the tag instructions and they washed very well. Super happy.
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Reviewed in the United States on April 8, 2026
★★★★★ 5
AMAZING - LOVE THESE!
Color: Blue, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
I've been using these pillow cases for more than 6 months and LOVE them. They are well made, no wrinkling, fraying or wearing out, even with a weekly washing. I love the zippers on them, my pillows fits perfectly in the case and don't constantly escape from the case overnight. They definitely perform as described: they keep me cool at night and don't smell and actually don't make a mess of my hair. I bought an extra one and put it on a pillow I keep close to my body which helps me from overheating during the night. They are a great value for the price, I wish I could get top sheets in the same style as these and I'd be in heaven!
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Reviewed in the United States on March 23, 2026
★★★★★ 3
Cool Pillowcases
Color: Gray, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
These pillow cases are silky soft and cool to the touch. They don’t stay as cool as I would like, however, so I find myself moving around on the pillow to find a cool spot or flipping the pillow over. I have washed them several times and the coolness seems to be diminishing. Still, it’s better than a regular cotton pillow case. The zipper is needed and helps keep the material on the pillow.
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Reviewed in the United States on August 20, 2025
★★★★★ 5
By far the best cooling pillow case I’ve bought highly recommend
Color: Blue, Size: Standard, Set name: Silky
Highly recommend best cooling pillow case I’ve bought very soft and comfortable seems to be made from good material as well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
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