BRP/PWC Performance Specialist Tech Support 1800-307-9635

**this kits are available on Call 1-800 307-9635 to order Ruthless Racing Stage 4 upgrade for 300 and 325 engine builds: 40% more acceleration and an additional 4 mph, resulting in 425 hp.
**this kits are available on Call 1-800 307-9635 to order Ruthless Racing Stage 4 upgrade for 300 and 325 engine builds: 40% more acceleration and an additional 4 mph, resulting in 425 hp.
**this kits are available on Call 1-800 307-9635 to order Ruthless Racing Stage 4 upgrade for 300 and 325 engine builds: 40% more acceleration and an additional 4 mph, resulting in 425 hp.
**this kits are available on Call 1-800 307-9635 to order Ruthless Racing Stage 4 upgrade for 300 and 325 engine builds: 40% more acceleration and an additional 4 mph, resulting in 425 hp.

**this kits are available on Call 1-800 307-9635 to order Ruthless Racing Stage 4 upgrade for 300 and 325 engine builds: 40% more acceleration and an additional 4 mph, resulting in 425 hp.

$5,499.99
$5,499.99
$5,799.99
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Shipping calculated at checkout.

Our custom combination of +.200 longer Molnar connecting rods, combined with our custom .100 shorter Wiseco pistons, provides higher RPM and HP when used together.

• 1+ mm oversized valves

• Kelford cams, Beehive springs, and titanium retainers

• Kelford cams Stage 4 Billet Camshaft

•Stage 4 CNC Ported head 

  • Bronze valve guides
  • CNC port
  • 3-angle valve job
  • equalized and evened out chambers
  • machined to fit 1mm over valves

This setup could be used on 93 to 100 octane fuel or E85

Send your factory head to our shop after making a purchase. The exchange will be prompt. We will send the cylinder head after receiving yours. PLEASE CALL IF YOU HAVE ANY QUESTIONS.