Chief Offshore

04/08/2026

A couple more 700s nearing completion with all the Chief Offshore updates!

04/04/2026

Another pair of 700s Built with all of our cooling system upgrades, Dyno tuned, Installed and Tested all 100% in house at Chief Offshore! Come see us for your 1 stop Offshore experience!

Chief Offshore has the most advanced cooling system upgrade on the market. We have done countless hours of development and dyno testing to get the 700 cooling system (same as the 525 system and not even adequate for a stock 700 ran hard) to preserve the engine even at at the 800HP+ level!

03/27/2026

Chief Offshore 1100 getting final tune to run on rec 90!

02/18/2026

💥 General Registration Opens: March 1, 2026, at 9:00 A.M EST 💥

Registration Link Coming Soon!
Event Dates: July 10-11, 2026

Visit www.BoyneThunder.com for more information

01/29/2026

Our Assembly Room is full of 700s in for top ends and cooling system updates!

12/19/2025

New Chief Offshore 600HP Engine for 22 Blackhawk Donzi!!

12/11/2025

As your Michigan Whipple Authorized Dealer we will be stocking these along with throttle bodies and injector plates for marine use!

FOR IMMEDIATE RELEASE 🔉 Unveils the X-71: A Modern Twin-Screw Powerhouse Inspired by Old-School Roots.

Fresno, CA — Whipple Superchargers is proud to announce the launch of its latest innovation in high-performance boost technology: the Whipple X-71 Twin-Screw Supercharger. A bold fusion of throwback style and cutting-edge engineering, the X-71 pays homage to the legendary 6-71 superchargers of the muscle-car glory days—while delivering the brutal efficiency and power capability only Whipple’s Gen 6 technology can provide.

At the heart of the X-71 is Whipple’s all-new 5.0-liter Gen 6 rotor pack, the most efficient positive displacement design we’ve ever produced. Precision-engineered for maximum airflow, cooler charge temps, and world-class reliability, the Gen 6 rotors elevate the classic 6-71 silhouette into a modern performance monster.

Whether you’re building a burnout beast, a street-crushing muscle car, or a record-setting drag machine, the X-71 is engineered to take your power to unprecedented heights. The unit combines the unmistakable nostalgia of a roots-style blower with the unmatched performance advantages of Whipple twin-screw technology.

Key Features of the Whipple X-71 Supercharger Include:
• Old-school 6-71–inspired design with traditional top and bottom opening geometry
• 5.0L Whipple Gen 6 Twin-Screw rotors for industry-leading efficiency and power production
• High-flow port design to maximize mass airflow and reduce parasitic losses
• Integrated bypass system for improved drivability, reduced heat, and enhanced fuel economy under cruise conditions
• Multiple drive snout lengths to accommodate a wide range of engine setups
• 8mm cog-style belt system for strength, precision, and consistent boost delivery under extreme loads

“The X-71 is our tribute to the superchargers that shaped hot-rodding culture, but rebuilt the Whipple way—stronger, faster, cooler, and far more efficient,” said Dustin Whipple, President of Whipple Superchargers. “This is the perfect blend of nostalgia and next-generation engineering, giving enthusiasts the aggressive look they love with the performance they demand.”

With its unmistakable stance, explosive performance potential, and Whipple-engineered refinement, the X-71 marks a new chapter for twin-screw technology in the world of classic-style superchargers.

The Whipple X-71 will be available through authorized Whipple dealers and distributors. For more information, visit WhippleSuperchargers.com or contact Whipple Sales at (559) 442-1261.

12/05/2025

Chief Hard coated Pistons and Billet Rods make for the toughest bottom end package! These go in our Dart Block 557CID Engine with a Bryant Billet Crankshaft.

10/31/2025

Beautiful 39 (edit from 43) Nortech in for service this fall! It will also get the proprietary Chief Offshore cooling system upgrade package that every 700 should have to preserve the head gaskets! This is especially important if they're turned up to Stage 2 (800HP) or more.

10/23/2025

10/18/2025

Another strong NA 540CID Chief Offshore Engine on 90 octane!!