For Chevy Small Block Sbc 2X4-1 Stainless Steel Exhaust Manifold Header+Gasket
For Chevy Small Block Sbc 2X4-1 Stainless Steel Exhaust Manifold Header+Gasket. Our 4-1 off-road headers are designed to allow the exhaust gasses to flow more freely from each 4 cylinder bank and combine in a more efficient manner. Tubing has been optimized for the Small Block 283/302/305/307/327/350/400 cubic inch engines. This creates a reduction in cylinder backpressure and improved exhaust gas velocity.
These improvements free up lost horsepower and torque. An added benefit is a more performance oriented exhaust sound. Made of high quality T-304 stainless steel material. TIG welded CNC machine flange. 2 x 4-1 racing design.
Increase high flow air, instantly gain 10 to 15 Hp. 1 x Header exhaust system. 69-91 Chevy Blazer 5.0 5.7. 73-86 Chevy C10 Suburban 5.0 5.7.
75-86 Chevy C10 5.0 5.7 6.6. 73-86 Chevy C20 Suburban 5.0 5.7 6.6. 75-86 Chevy C20 5.0 5.7 6.6. 75-86 Chevy C30 5.0 5.7 6.6.
82-86 Chevy K10 K20 K30 5.0 5.7. 82-86 Chevy K10 K20 Suburban 5.0 5.7. 75-86 Chevy K5 Blazer 5.0 5.7 6.6. 1987 Chevy R10 5.0 5.7. 87-88 Chevy R30 5.7.
1987 Chevy V10 5.0 5.7. 87-88 Chevy V10 Suburban 5.7. 89-91 Chevy V1500 V2500 Suburban 5.7. 1987 Chevy V20 5.7.1987 Chevy V20 Suburban 5.7. 1988 Chevy V30 5.7. 89-91 Chevy V3500 5.7.
87-88 Chevy R10 R20 Suburban 5.0 5.7. 89-91 Chevy R1500 R2500 Suburban 5.7. 1987 Chevy R20 5.0 5.7. 75-78 GMC C15 Suburban 5.0 5.7.
1973 GMC C15/C1500 Suburban 5.0 5.7. 79-86 GMC C1500 5.0 5.7 6.6.
79-86 GMC C1500 Suburban 5.0 5.7. 75-78 GMC C25 5.0 5.7 6.6. 75-78 GMC C25 Suburban 5.0 5.7 6.6. 1973 GMC C25/C2500 Suburban 5.0 5.7.
75-78 GMC C35 5.0 5.7 6.6. 79-86 GMC C3500 5.0 5.7 6.6. 70-91 GMC Jimmy 5.0 5.7 6.6. 82-86 GMC K1500 5.0 5.7. 82-86 GMC K1500 Suburban 5.0 5.7.
77-78 GMC K25 Suburban 5.0 5.7 6.6. Professional Installation is Highly Recommended. Installation Instruction is NOT Included. DOMESTIC LOWER 48 US STATES. We are not responsible for incorrect or undeliverable addresses. Some of the packages cannot be delivered to a PO Box. Package will be held until a valid physical address is provided.The person that is purchasing this product makes the following representations and acknowledges and agrees to the following terms and conditions. This off-road race only product ("this Product") is designed and intended for use in organized, amateur and professional racing events, but is limited to closed-course racing and open-course racing that is formally sanctioned by a recognized racing organization involving the motor vehicle in which it is installed (the "Vehicle"). It is not for use on public highways or roads nor is it for recreational off-road use other than solely for competition purposes. Use of this Product for purposes other than solely for competition is a violation of federal law and may violate applicable state or local environmental, motor vehicle and other laws.
The User warrants that this Product shall only be used in sanctioned closed-circuit events. That use of this Product may make the Vehicle unfit or unsafe for the purposes intended or for any purpose and cause personal injury, property damage or death. That the installation of this Product, improper installation of this Product, use of this Product with other components or failure to use this Product in conjunction with other components, could result in or cause personal injury, property damage or death. THIS PRODUCT IS FOR COMPETITION RACETRACK USE ONLY. ALL OTHER USES ARE CONTRARY TO FEDERAL LAW.