Small Block Ford to Chevy LS Header Adapter Flange Kit

Adapt your Small Block Ford 289/302/351w Headers and exhaust manifolds to a Chevy LS Cylinder head. No need for cutting and welding, simply bolt up these adapters and go! Popular in the Marine industry, these 1/2" thick 304 Stainless Steel adapter plates are a budget friendly way to utilize the plentiful and cost-efficient Small Block Ford Exhaust Manifolds to a late model GM LS engine.

These ONLY work for Small Block Ford exhaust headers and exhaust manifolds with an OEM 2" space bolt pattern. Other aftermarket bolt patterns will NOT fit these adapters. Please verify your bolt pattern before ordering. The LS bolt pattern fits all conventional LS cylinder heads, including LS1, LS3, LS6, LS7, LSx, and LSA factory-style cylinder heads (OEM & Aftermarket)

Base Kit Includes:

(2) SBF to LS Adapter Plates- 1/2" Thick 304ss. These are Counter-bored on the cylinder head side to match an LS exhaust port configuration
(1) Set of M8 x 1.25mm Countersunk bolts for LS Cylinder Heads

Complete Kit (Bolts) Includes:

(2) SBF to LS Adapter Plates- 1/2" Thick 304ss. These are Counter-bored on the cylinder head side to match an LS exhaust port configuration
(1) Set of M8 x 1.25mm Countersunk bolts for LS Cylinder Heads
(1) Set of SBF Header Gaskets- Remflex #3028
(1) Set of Chevy LS Header Gaskets- Remflex #2049
(1) Set of ARP Stainless Header Bolts, 3/8"-16 x 1" UHL for bolting your Ford headers on- ARP #400-1110
(1) Tube of Nickel Header Bolt Anti-Sieze, Permatex #77134

Complete Kit (Studs) Includes:

(2) SBF to LS Adapter Plates- 1/2" Thick 304ss. These are Counter-bored on the cylinder head side to match an LS exhaust port configuration
(1) Set of M8 x 1.25mm Countersunk bolts for LS Cylinder Heads
(1) Set of SBF Header Gaskets- Remflex #3028
(1) Set of Chevy LS Header Gaskets- Remflex #2049
(1) Set of ARP Stainless Header Studs, 3/8"-16 x 1.67" OAL for bolting your Ford headers on- ARP #400-1403
(1) Tube of Nickel Header Bolt Anti-Sieze, Permatex #77134