GM LS Cathedral Port to Rectangle Port Aluminium Intake Adapters Length_1.775" - 1.800" Recommended horsepower rating: 600-1125HP

Recommended horsepower rating:  600-1125HP

and the unsprung weight that will give you an edge over the competition

3/8" NPT port (x1)

Suit GM LS Series Engines

Each manifold is finished with a black enamel coat for shipping purposes only

GM LS Cathedral Port to Rectangle Port Aluminium Intake Adapters Length_1.775" - 1.800" Recommended horsepower rating: 600-1125HPAeroflow Performance now offer billet 6061 aluminium intake adapters to bolt up any cathedral port intake or supercharger to your rectangle port heads. Kit comes complete O Rings for a sure seal. If bolting up an LSA intake you require M6x1 x 70mm UHL bolts. When running a car intake manifold you require M6 x 130mm UHL bolts and when running a truck intake manifold you require M6 x 90mm UHL length bolts. Adapters are 12. 7mm (1 2") thick.