James, gasket set, cylinder base. 3-5/8" bore. .020" RCM - 63-84 B.T. (excl. Evo) with 3-5/8" big bore cylinders (NU) 514241 032" thick AFM (Aluminum Foamette

032" thick AFM (Aluminum Foamette Material)

No ECE or E-mark

120”(3mm)wall seamless 4130 chromoly tubing

- 1 plug - dual fire

OEM replacement reference 68712-94A (chrome version)

James, gasket set, cylinder base. 3-5/8" bore. .020" RCM - 63-84 B.T. (excl. Evo) with 3-5/8" big bore cylinders (NU) 514241 032" thick AFM (Aluminum Foamette3 5 8" big bore. . 022" RCM (Rubber Coated Metal). Final crush . 020". RCM (Rubber Coated Metal) gaskets consists of a . 020" thick stainless spring steel base covered with a . 001" thick heat resistant Viton rubber on both sides. A very strong gasket which requires no re torquing. Gaskets will not become brittle or burn out.