Toggle right Slidebar




DISCOUNTS FOR ALL ACTIVE AND VETERAN EDUCATORS FIREFIGHTERS LAW ENFORCEMENT MEDICAL MILITARY CALL CHAT EMAIL TEXT FOR MORE DETAILS MAY EXCLUDE CERTTAIN ITEMS AND SOME RESTRICTIONS APPLY

Holley EFI Plenum Top, Satin, 300-621 (GM LS1, LS6 & LS2)

$184.95

REVIEWS: 0
AVERAGE RATING OF 0 0 of 5 Stars!

Satin Finish
  • Individual plenum top for 300-621 allows you to select your components individually as you build your intake system
  • Designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads
  • Designed for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm depending on the application
  • Modular design allowing the use of the included front-feed plenum entry
  • Intake design facilitates custom inlet duct and throttle body placement
  • Low height to fit under a stock or mildly modified hood in the front-feed configuration
  • Front entry plenum flange allows design & fabrication of special throttle body adapters or inlet ducts for custom installations
  • Clears 1998-2002 (4th Gen) Camaro/Firebird and 1997-2004 (C5) Corvette cowls and hoods without modification
  • High volume fuel rails and mounting hardware included with 3/4"-16 o-ring ports (8 AN)


Add to Cart:

  • Model: 300-604
  • FROM: Holley EFI

ask a question
price match


we added this on Tuesday 05 May, 2020.

copyright © 2003-2024 COLORADOSPEED. powered by hORSEPOWER & tORQUE