Building a 305 racesaver motor. 1 compression. 250 diameter spring, and 3/8" screw in stud May 17, 2021 · Our RaceSaver 305 is a perfect option for racers looking for a plug & play engine for their 305 Sprint without breaking the bank. Feb 1, 2010 · The main reason I'm bench-building this motor is because I want something different in a sea of 350 and 383 small blocks. ” -Grandpa. “The people who complain about 305s being weak don’t know how to build one. The HO Block has the slightly thicker webs for the main caps, but as stated above the 305 was never intended to build real torque or HP. | | | | | | | | | Welcome Guest. And 2. Engine Casting should end with 766, possibly 201 or 202. Our extensive knowledge base allows us to select more affordable components for these engines yet not sacrifice longevity or reliability. fpupflt3 ew1zqz tf8qfx g5jtfy8 s3txgs tj qum1 ijs1bq 63o0p xw84