1) Fits SBC Chevy 265 283 305 327 350 383 400 using a long water pump. 2) Finish: Polished 3) Material: Constructed of thick gauge aluminum and with a high-quality polished aluminum finish. 4) Shape: Round 5) Size: The pulley diameter is 6 9/16". The pulley is 2 1/4" tall. The bolt pattern is 2 1/8". The center hole is 5/8". 6) Package includes: As shown in our pictures. This Item Doesn't Come With Installation Guides. We Highly Recommend Professional Installation.
