Long Tube Headers
• Chevy 283-400
• 1967-1987 Chevy/GMC 1/2, 3/4 & 1-Ton 4WD
• 1967-1991 Blazer/Jimmy K5, Suburban 4WD
• 1.625'' Tube
• 2.5'' Collector
• Ceramic Coated
  
  
• Must modify stock exhaust to retain catalytic converters
• Applications with oxygen sensors use reducers 387-10105 for 2-1/2' three bolt flange
• On 1983-84 4WD, it is necessary to remove the rubber stopper below the starter
• Installation Requires A/C Bracket 387-10042
• May require clutch linkage modifications
• Header has a dimple on drivers side primary tube for spark plug boot clearance.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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