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Vehicle Info NeededDYNATECHPART NUMBER: 329-796-00100
Header Adapter Plate Kit Small Block Chevy Standard 23º to Stahl Pattern
$22999
Ships on 11/05/2026
Lowest Price Guarantee
Header Adapter Plate Kit
- Header Adapter Plate Kit
- Small Block Chevy Standard 23º to Stahl Pattern
- 1-1/8" Square Opening
- 5/8" Thick
- Now you can bolt BIG tube headers onto your Small Block Chevy! When using GM and aftermarket cylinder heads with a standard Chevy bolt pattern, you are limited to a 1.75" header tube. Dynatech bolt-on adapter plates let you increase header tube size for maximum power. Dynatech adapter plates are CNC machined from 5/8" billet aluminum, and have square windows machined to aid in port matching. The outer bolt pattern features threaded 3/8" steel inserts. Each kit includes plates and hardware for two heads.
Part TypeHeader Extension
Product LineDynatech Billet Aluminum Header Adapter Plates
BrandDYNATECH
Package Height0.2
Package Width0.6
Package Length20.1
Weight3.72 PG
Part CategoryPerformance Parts
Includes Stubs For Primary TubesNo
Gaskets IncludedNo
Header Flange Thickness0.625 in (15.875 mm)
Header Flange Port Size1.25 in (31.75 mm)
Header Flange Port ShapeSquare
QuantitySold as a kit
Mounting Hardware IncludedYes
Header Bolt PatternStahl
Header Flange MaterialBillet aluminum
Part FitmentUniversal
Vendor Part Number796-00100
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
