(non-EGR) Designed for street 1955-86 262-400 c.i.d. small-block Chevys. #2101 is stock replacement/street legal part for 302, 327 and 350 V8s with OEM 4-bbl. Or Edelbrock #1400 carb; 1966-72 (1973 non-California) cars, 1966-83 trucks and Suburbans; except stock equipped EGR. #3701 is stock replacement/street legal part for 305, 350 and 400 V8s with OEM 4-bbl. or Edelbrock #1400 carb.; 1972-86 and GM corporate engines with 350 V8s; 1981-86. Performers accept late-model choke, waterneck, air-conditioning, alternator and H.E.I. Has provisions to add oil fill tube. Not for 1987 and later cast-iron or Chevrolet Bowtie cylinder heads. Will fit 1987 and later stock aluminum cylinder heads. Available with standard finish or polished. Installation Notes: Use #8035 to adapt clamp-on EGR valve. With #1400 & #3701, EGR spacer #1476 is required. #1476 is required with #3701 on cast-iron centerbolt heads with 1986 & earlier bolt pattern. Choke plate #8901 included. Recommended intake gasket: Edelbrock #7201 or Fel-Pro #1256. Manifold height: A-350", B-4.60".