Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
BluePrint Engines Chev 540 Pro Series Stroker Crate Engine Dressed 670hp # PS5401CTCKB540 CI ProSeries Stroker Crate Engine Big Block GM Style BBC Deluxe Dressed w Pulleys Black HP & Torque: 670 HP 660 FT LBS Compression Ratio: 10. 0: 1 Aluminum Heads Hydraulic Roller Cam Forged Crank Forged Pistons BLOCK: NEW BluePrint Cast Iron Block Manufactured and Machined in the USA! 4 Bolt Main 4. 500" Bore 1 Piece Rear Main Seal Mech fuel pump provision: Yes Standard Deck ROTATING ASSEMBLY: New BluePrint Forged Crankshaft 4. 250" Stroke Forged
540 CI ProSeries Stroker Crate Engine | Big Block GM Style | BBC | Deluxe Dressed w/ Pulleys - Black
- HP & Torque: 670 HP / 660 FT LBS
Compression Ratio: 10.0:1
Aluminum Heads
Hydraulic Roller Cam
Forged Crank
Forged Pistons
BLOCK:
- NEW BluePrint Cast Iron Block
Manufactured and Machined in the USA!
4-Bolt Main
4.500" Bore
1-Piece Rear Main Seal
Mech fuel pump provision: Yes
Standard Deck
ROTATING ASSEMBLY:
- New BluePrint Forged Crankshaft
4.250" Stroke
Forged H-beam 6.385" connecting rods
Forged Pistons
Internal
CYLINDER HEADS:
- BluePrint Aluminum Cylinder Heads -PS8013
- 119cc chamber
- 2.30" intake/1.88" exhaust valves
- 316cc intake/124cc exhaust runners
- Cylinder heads feature a .300 in. raised exhaust port vs an OEM casting.
- Must verify header/exhaust clearance
CAM SPECS:
- Cam Type: Roller
.647 Intake .647 Exhaust
248 Intake / 254 Exhaust duration
@ .050 - 112 degree lobe separation
ALSO INCLUDES:
- Valve covers, oil pan and timing cover
Harmonic balancer - Intake Manifold
- Carb
- Distributor
- plugs and wires
- Dyno test results shipped with engine
- Installed Black Complete Front Accessory Drive with A/C, P/S, Alt, WP, and all pulleys and belts.
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
4.7 ★★★★★
Based on 417 reviews
Sort
Product Reviews
★★★★★ 5
Durable Material & Lots of Pockets
Color: Black, Size: 15.6 Inch
This backpack is perfect for going to work or going on a trip. The several compartments within each section of the backpack make it super easy to keep things organized and separated.
What I like:
* Pockets & Compartments - With 3 main compartments, each with additional pockets and zippered sections within, a front pocket, and two water bottle pockets on the sides, this backpack is definitely not lacking when it comes to organization and space. It is extremely spacious and has more pockets inside each section than I would have imagined. There's a place for everything - big and small!
* Material - The water-resistant material has a nice matte finish and resists water. It is durable and feels like it will hold up well with regular use. The zipper pulls are some of the best quality I've seen for a bag at this price point. They don't feel cheap or like they're going to come off after regular use.
* Comfort & Convenience - The shoulder straps have a decent amount of padding without being bulky, making the backpack feel more elevated than a typical school backpack. I LOVE the strap across the back of the bag. It makes traveling and moving through the airport a breeze - just slide the strap over your suitcase handle and you don't have to carry the backpack on your back.
What could use improvement:
* Interior Color - The only complaint I have about this backpack is that the listing says the interior color is tan and the color in the image is a light tan ... but the actual color is a gold color, which is not my style or taste.
Despite the discrepancy in the interior color, this backpack is a great option for a variety of uses, and the quality and durability make it a great option for everyday use as well as when you're traveling.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 30, 2025
★★★★★ 5
Stylish and Roomy Multifunctional Laptop Backpack
Color: Atrovirens, Size: 15.6 Inch
The GOLF SUPAGS Laptop Backpack is what happens when practicality finally meets clean, understated style. The “Atrovirens” shade is a deep, foresty green color that feels sophisticated and gender-neutral, making it equally perfect for men and women. This is a very good looking, on trend tonal backpack that can last you forever, long after you've graduated. It’s water-resistant (which I immediately tested during a light rain, passed beautifully) and made of a smooth, dense fabric that doesn’t wrinkle or pill. The zippers glide cleanly so no snagging or loose threads. And, most importantly, every pocket has purpose. You get multiple compartments, including a padded section that fits a 15.6” laptop snugly, a front organizer for chargers and pens and a hidden back pocket for valuables (passport, cash, etc. when you're traveling.). What surprised me most though is how comfortable it feels when loaded. The padded straps and breathable back panel distribute weight evenly, which makes long commutes or travel days much easier. It even stands upright on its own, so no more floppy bag collapse under desks. This bag is so efficiently designed to be functional in any instance.
In a world full of generic backpacks, this bag looks great and is smart, stylish and built to last. I definitely give GOLF SUPAGS five stars because this bag quietly outperforms the loud, overhyped brands.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 21, 2025
★★★★★ 5
Perfect size for laptop backpack!
Color: Champagne-upgrade, Size: 14 Inch, Color: Champagne-upgrade, Size: 14 Inch
Professional and stylish
Perfect for my 12.5” laptop! I choose the one with 14inch and is perfect size, not small not big
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
★★★★★ 5
Professional, functional, and cute!
Color: Pinkish Grey, Size: 14-Inch
I needed a backpack that looked professional and that wasn't massive. This fits my 15 inch laptop with room to spare. The back zipper portion is padded for extra laptop protection. I was surprised by the quality. It's my go-to bag for transporting my work stuff to and from the office.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2025
★★★★★ 5
Great buy
Color: Pinkish Grey, Size: 14-Inch
Great backpack for computer. I like that I can transport my computer and other homework supplies in a small, fashionable backpack
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026