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Doug's Headers

Headers, Dougs, 1978-88 SBC, 1-5/8", Tri-Y

Part# : DHD370Y
Mfg#: D370Y
Sold As: Pair
Ship Size: Oversize 3
$715.99
List Price: $788.95
You Save $72.96

Fits 1978–1988 Cutlass View fitment for 9 models
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Fitments for a variety of applications

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 floorshift only 1-5/8" tubes, 3" coll., oval port Application notes: 5, 36, 92, 93, 96 DHOD330 - 265-400 with AC, PB,PS, AT only 1-3/4" tubes/3" coll. SAP Application notes: 92, 205, 209 DHOD318 - 396-502 with AC, PB, PS, AT only 2" Tubes/3-1/2" coll. SAP Application notes: 210 Application footnotes: 5. Shorty design for maximum ground clearance 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 205. Will fit 168-tooth flywheel is used with Powermaster mini-starter# 9500/OPG# CH26244 209. One tube each side over frame 210. Must use stock small-block frame stands and motor mounts

Notes

  • This item is not eligible for any further discounts or promotional pricing.
  • This item is Oversize 3, and is excluded from free ground shipping.
  • 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.
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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
We aim to provide accurate and complete product information. If you notice anything incorrect, missing, or unclear, please let us know.
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.

Vehicle Fitment

Year Make Model Application Details
1982 Buick Grand National  
1984–1987 Buick Grand National  
1978–1987 Buick Regal  
1983–1986 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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