STAGE 4 upgrade for 300 & 325 Insane acceleration add 2-4 mph
STAGE 4 upgrade for 300 & 325 Insane acceleration add 2-4 mph
STAGE 4 upgrade for 300 & 325 Insane acceleration add 2-4 mph

STAGE 4 upgrade for 300 & 325 Insane acceleration add 2-4 mph

Regular price
$5,499.99
Sale price
$5,499.99
Regular price
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Unit price
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Our custom combo of +.200 longer Molnar connecting rods combined with our custom .100 shorter Wiseco pistons provide higher RPM and HP when used together.

•ProV 1+ mm over size valves

•kelford cams Beehive springs and titanium retainers

•kelford cams Stage 4 Camshaft dlc coated 

•Stage 4 Cnc Ported head 

  • bronze valve guides
  • CNC port
  • 3 angle valve job
  • equalized 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 PURCHASING. THE EXCHANGE WILL BE PROMPT, WE WILL BE SENDING THE CYLINDER HEAD AFTER RECEIVING YOURS. PLEASE CALL IF YOU HAVE ANY QUESTIONS.