Home » Jeep Engine & Fuel System » Throttle Bodies & Accessories » Throttle Bodies » Painless Wiring 65301 Performance 68mm PERFECT Hi-Velocity Throttle Body for 91-04 Jeep® Wrangler YJ, TJ & Unlimited with 4.0L I-6 Engine or 4.7L I-6 Stroker

Painless Wiring 65301 Performance 68mm PERFECT Hi-Velocity Throttle Body for 91-04 Jeep® Wrangler YJ, TJ & Unlimited with 4.0L I-6 Engine or 4.7L I-6 Stroker

Catalog #: 17015.4001
Painless Wiring Part #: 65301
PERFECT Hi-Velocity Throttle Bodies are designed using state of the art CAD systems to provide the ultimate solution to EFI air flow control. 6061-T6 aluminum billet construction on full CNC machining systems create the largest bores possible in the factory mounting envelope without sacrificing strength or durability like a modified casting. These Throttle Bodies will fit all Jeep 4.0L engines from any vehicle and are fully compatible with the stock ecm's as well.

The PERFECT Hi-Velocity's patented permanent two piece construction provides the largest inlet for each throttle body while still maintaining a tapered approach to the throttle blade, flowing more air than a straight bore. The 17-4 precipitation hardened stainless steel profiled throttle shaft used in these throttle bodies is tough enough to withstand all forms of on and off-road racing. Due to the strength of the stainless steel the shaft can be halved and profiled to present minimal resistance to flow at WOT, out flowing the competition's full round profile shaft. The PERFECT Hi-Velocity Throttle Body also uses only high strength sealed ball bearings with high temperature grease to assure a lifetime of operation under all conditions. The dual wound stainless steel springs assure long service and excellent throttle control through the careful selection of spring rate for each application. The throttle blade is made from thin but tough .05" thick 5052 aluminum, elliptically profiled for quick response and clean shut-off. The 0.100" thick laser cut steel linkage is designed to handle any driving condition and style and replicates all of the factory cable mounting positions. All PERFECT throttle bodies are designed with pressurization and nitrous use in mind, using materials and tolerances compatible with modern power-adders!

These throttle bodies come as complete kits, allowing fast installation without modifying the factory cables, controls or brackets. The anodized finish will provide a lifetime of "PERFECT" looks.

Stock Jeep TB:

  • Effective bore dia: 54mm
  • Effective plate dia 59.8mm
  • Inlet dia: 62mm
  • Effective flow rate: 415 CFM (being generous)
  • Stock height from mounting flange: 65mm

62mm PERFECT Hi-Velocity Throttle Body:

  • Effective bore dia 68mm
  • Effective plate dia: 68mm
  • Inlet dia: 72mm.
  • Effective flow rate: 750CFM
  • PERFECT Hi-Velocity Throttle Body height from mounting flange: 73mm

Intake manifold port size: 62mm

Installation Notes
Installation Difficulty:
Level 2Intermediate

1. Must Be used with EMS Systems.
2. Intake Manifold opening must be opened up to at least 67mm.

Installation Time: Less than an hour
Parts Included

Throttle Body

  • Engine Size: 4.0L I-6, 4.7L I-6 Stroker
  • Engine Fuel: Gasoline
  • Jeep Wrangler (TJ)

  • 2004 Jeep Wrangler (TJ)
  • 2003 Jeep Wrangler (TJ)
  • 2002 Jeep Wrangler (TJ)
  • 2001 Jeep Wrangler (TJ)
  • 2000 Jeep Wrangler (TJ)
  • 1999 Jeep Wrangler (TJ)
  • 1998 Jeep Wrangler (TJ)
  • 1997 Jeep Wrangler (TJ)
  • Jeep Wrangler Unlimited (TJ)

  • 2004 Jeep Wrangler Unlimited (TJ)
  • Jeep Wrangler (YJ)

  • 1995 Jeep Wrangler (YJ)
  • 1994 Jeep Wrangler (YJ)
  • 1993 Jeep Wrangler (YJ)
  • 1992 Jeep Wrangler (YJ)
  • 1991 Jeep Wrangler (YJ)
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