Sale

Drivetrain Bellhousings and Components

Holley

LS ENGINE TO TKX/TKO COMPLETE TRANSMISSION INSTALLATION KIT 6BOLT

$2,081.95 $1,899.95 Save $182.00

SKU: H00E 319-504

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

This kit provides everything needed to bolt a TKX or TKO transmission to most Gen III, Gen IV, and Gen V Small Block Chevrolet Engines with a 6-bolt or 8-bolt flywheel. It includes a Lakewood bellhousing, Hays billet steel flywheel, clutch and pressure plate, hydraulic release bearing, roller pilot bearing, and all necessary hardware. The 319-504 is designed for 6-bolt flywheel LS engines, common in Gen III and Gen IV engines produced before 2009 (LS1, LS2, LS3, LS6, LS7, LM7, LQ9, L33, and similar truck engines). The 319-505 is for 8-bolt flywheel LS and Gen V LT engines from 2009 onwards (LSA, LT1, LT4, L83, and similar truck engines).
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Part #: 319-504

These Holley Transmission Installation Kits come complete with everything you need to bolt a TKX or TKO transmission to almost any Gen III, Gen IV, and Gen V Small Block Chevrolet Engines with a 6-bolt or 8-bolt flywheel. Built with a mixture of our best brands including Lakewood and Hays, this kit includes a bellhousing, billet steel flywheel, clutch and pressure plate, hydraulic release bearing, roller pilot bearing, and all hardware needed to install these components.

Features:

  • Designed for Gen III/Gen IV Small Block Chevrolet Engines with 6-bolt crank/flywheel using a TKX or TKO transmission
  • Light weight cast aluminum bellhousing and stamped steel dust cover provides factory-like installation and appearance
  • Billet steel flywheel for light weight (28 pounds) and additional strength
  • Roller style pilot bearing offers improved shifting by reducing parasitic drag and transmission wear
  • 26-spline, 12-inch organic sprung clutch offers superior clamping force and smooth engagement for engines up to 550 Naturally Aspirated Horsepower (500 w/ Power Adder)
  • Adjustable Hydraulic Release Bearing offers reduced pedal effort and easy installation
  • Works with OE (original equipment) or MSD High Torque starters
  • All hardware included

Everything you need to connect a 6-Bolt LS Engine to a Tremec TKX or TKO Transmission

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandHolley
Part NumberH00E 319-504
Weight81.65 lb

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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