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Doug's Headers

Headers, Dougs, 1978-88 SBC, 1-3/4", Full Length

Vehicle Specific View fitment for 9 models
Part# DHOD330
Mfg# D330
Sold As Pair
Manufacture Rebate
$662.99
List Price: $729.95
You Save $66.96

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Allow 2-6 weeks for item to arrive.
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Doug's headers feature heavy wall construction with 3/8"-thick mounting flanges, ensuring durability and longevity under the most demanding circumstances. All the necessary mounting hardware is included with each set: bolts, gaskets and reducers.

DHD305C - 265-400 SB with AC, PB, PS, MT floor shift 1-5/8" tubes, 3" collector, oval port Application notes: 5, 36, 92, 93, 96 DHOD330 - 265-400 with AC, PB, PS, AT 1-3/4" tubes, 3" collector, SAP Application notes: 92, 205, 209 DHOD318 - 396-502 with AC, PB, PS, AT 2" tubes, 3-1/2" collector, SAP Application notes: 210 DHOD336 - 265-400 SB with AC, PB, PS, AT/MT floor shift 1 3/4" tubes, 3" collector, oval port Application notes: 17, 36, 93, 96, 214 DHD370Y - 265-400 SB with AC, PB, PS, AT/MT 1 5/8" tubes, 3" collector, oval port Application notes: 17, 36, 93, 96, 126, 133 Application footnotes: 5. Shorty design for maximum ground clearance 17. Fits most angle plug heads 36. Fits D-Port heads including ZZ4 crate engines 92. Will fit most angle plug heads including factory Chevrolet Bowtie heads 93. Requires removal or modification of locking steering columns if equipped 96. Installation requires use of 79 or later AC compressor bracket and short compressor 126. Tri-Y Design 133. Does not fit with Powerglide transmission 205. Will fit 168-tooth flywheel is used with Powermaster mini-starter# 9500/OPGI# CH26244 209. One tube each side over frame 210. Must use stock small-block frame stands and motor mounts 214. Must use non-shell type motor mounts

Notes

  • This item is not eligible for any further discounts or promotional pricing.
  • SHIP NOTE: This item exceeds standard size and is exempt from free shipping.
  • SHIP NOTE: This item is SPECIAL ORDER and will drop-ship from the manufacturer. While the majority of drop ship orders experience no delays, please be advised that OPGI does not control delivery times.
3
This product is not legal for street use on an emissions-controlled vehicle. It may be used on dedicated competition or pre-pollution-controlled vehicles only. Learn More

Find Item In This Catalog

  • 2024 GM G-Body 1978-1988 216
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.

Rebate

Mail-In Rebate
$100 off qualifying Dougs Headers - 2024 Fall Rebate$

Expires: 12/31/2024

• $100 on select Headers

Valid on purchases October 1st - December 31st, 2024
* Rebate Form must be submited by January 30th, 2025

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Vehicle Fitment

Year Make Model Application Details
1982 Buick Grand National  
1984–1987 Buick Grand National  
1978–1987 Buick Regal  
1983–1987 Buick T-Type  
1978–1987 Chevrolet El Camino  
1978–1983 Chevrolet Malibu  
1978–1988 Chevrolet Monte Carlo  
1978–1988 Oldsmobile Cutlass  
1982–1986 Pontiac Bonneville  
1978–1987 Pontiac Grand Prix  
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