The intake & exhaust manifold nuts and studs will stretch and weaken with use, and should be replaced when installing any header. This kit includes:
- (10) Short Manifold Studs
- (1) Medium Manifold Stud (for rear engine slinger and rear bypass tube)
- (6) Long Manifold Studs (for manifold spacers)
- (17) Manifold Nuts
We recommend this kit for all 70-74 240Z-260Z's with E31 or E88 Cylinder Heads. 73-74 models originally used bolts along the top of the intake manifold; however, we have found that studs make manifold installation easier. For all later L-Series heads (N42, N47, P79, P90), follow the fuel system you are choosing. Regardless of which 70-83 Z you have, if you are using an N42, N47, P79, or P90 head with a carburetor setup, you will need this kit. If you are using an N42, N47, P79, or P90 head with a fuel injection manifold, then you need part 15-8081 (see Related Items below).
All L-Series heads also have 6 "spacers" that hold down both the intake manifold and the exhaust manifold/header at the same time. Check to see if these are worn and in need of replacing also (see part 14-0373 in Related Items below).
Datsun 240Z, 260Z (or 280Z, 280ZX with carburetor conversion)
Datsun S30 (S130)
1970, 1971, 1972, 1973, 1974 (or 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983 with carburetor conversion)