Edelbrock 85332 Head Bolt Kit for Jeep 4.0L I6 91-06 Wrangler YJ/TJ

Engine/Vehicle Fitment

• 1991-2006 Jeep Wrangler YJ & TJ (4.0L inline-six)
• AMC/Jeep 4.2L inline-six, when used with Edelbrock cylinder heads

Fitment Notes

• Specifically matched to Edelbrock Performer cylinder heads #50159 and #50169 (sold separately) - this is a head bolt kit for pairing with Edelbrock's own aftermarket heads, not a generic stock head bolt replacement
• Requires 1/2" diameter head bolts - confirm your head's bolt pattern before ordering
• Bolt count and length: (7) 3.750" bolts and (7) 4.500" bolts per kit, per parts-catalog data - sufficient for a single inline-six head installation

Features

• 190,000 PSI yield tensile strength for reliable clamping loads
• Chromoly construction with black oxide finish
• Threads rolled after heat-treating for superior strength and form
• Generous filleting throughout to reduce stress risers
• Small hex head design for better socket clearance in tight spaces
• Edelbrock "E" logo stamped into each bolt head
• Includes washers

Specifications

• Bolt Style: Hex head
• Material: Chromoly
• Finish: Black oxide
• Yield Tensile Strength: 190,000 PSI
• Washer Style: Flat, 60-degree seat
• Bolt Diameter: 1/2 in

Included Components

• 7x Head Bolts, 3.750 in length
• 7x Head Bolts, 4.500 in length
• 14x Washers

Product Description

The Edelbrock 85332 is a head bolt kit built specifically to pair with Edelbrock's own Performer cylinder heads (#50159 and #50169) on Jeep 4.0L inline-six engines, the engine that powered the Wrangler YJ and TJ through most of their production run. It's the fastener kit Edelbrock designs alongside its own heads rather than a universal stock-replacement set, so it's aimed at builders doing a head swap onto one of those specific Edelbrock castings.

The 190,000 PSI tensile strength and generous fillet radius throughout the bolt design are there to handle the clamping loads of a performance head install reliably over time, while the rolled threads (done after heat-treating, not before) keep thread strength and accuracy higher than a standard cut-thread bolt.

Worth being clear about at the point of sale: this isn't a bolt kit for reinstalling your factory stock heads. It's matched to Edelbrock's aftermarket head castings, and it'll also work on the related AMC/Jeep 4.2L inline-six, but only if that engine is also running Edelbrock heads. A buyer looking to just replace worn factory head bolts on a stock engine would want a different kit.