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Part fits the following years:1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971


1964-1972 Tempest Headers, Performance Ls1/Ls6 With Ac (At/Mt Floorshift) D-Port Heads (1-3/4" Tubes/3" Collector) ** 180 ,181

Part# DHD3338


Mfg# D3336

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SAVE: $53.96 Retail: $586.95

OPGI Price: $532.99

Part Type: (P) High Performance, designed to improve performance
Years: Sold As: PAIR
2018 Tempest Catalog Page: 455

Available in metallic ceramic, high-temp black, or raw steel finishes

Nothing beats high-performance from Doug's!

  • NOTE1: These high-performance items are not eligible for any further discounts or promotional pricing.
  • SHIP NOTE: This item exceeds standard size and is exempt from free shipping. more info
  • SHIP NOTE: This item is SPECIAL ORDER and will be drop-shipped from the manufacturer. more info

What is the main thing you look for when shopping for a new set of headers? Performance of course! And with Doug's, you've got it. You'll also get the ease-of-installation and a great selection of applications for all years. Doug's headers feature heavy-wall construction with 3/8"-thick mounting flanges, ensuring durability and longevity under the most demanding circumstances. All of the necessary mounting hardware is included with each set: Bolts, gaskets and reducers. It's a no brainer. Look no further than Doug's for your next set of headers! NOTE: D-Port headers do not fit Edelbrock D-Port heads. Due to the configuration of the exhaust ports, you must use Doug's round port headers. Doug's D-Port headers are for factory Pontiac heads.

All headers are for power brake and power steering applications. APPLICATION FOOTNOTES: 93. Requires removal or modification of locking steering columns if equipped 104. Some factory heads do not have end bolts and should be drilled and tapped for proper sealing 132. Fits Edelbrock “Performer,” Ram-Air, Super-Duty and H.O. heads only 134. 4-Speed applications must use OE 64-65 Z-Bar part# 9776376 136. Application with scatter shield or dual-starter bellhousing must use Fram oil filter part# PH3675 180. Requires use of LS1 adapter plate kit 181. Includes 3" to 2-1/2" reducers with O2 fittings 190. TH400 applications must use shorter aftermarket modulator valve (2-3/4" Long) 191. Headers fit with the following Milodon oil pans: 30355, 31660, 31665

Make & ModelYear RangeApplication Details
Buick Skylark1964-1972
Chevrolet Chevelle1964-1972 w/AC, AT or MT (160, 180)
Chevrolet El Camino1964-1972 w/AC, AT or MT (160, 180)
Chevrolet Monte Carlo1970-1972
Pontiac GTO1964-1972 ** 180 ,181
Pontiac LeMans1964-1972 ** 180 ,181
Pontiac Tempest1964-1972 ** 180 ,181
California Prop 65 Icon WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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