# 91 305 engine ? **URL:** \ **Category:** PittSpeed Automotive\ **Created:** [April 20, 2007, 2:45pm UTC](https://forums.speedlife.net/t/91-305-engine/189411 "2007-04-20T14:45:13Z")\ **Posts on this page:** 1\ **Showing post:** 63
**Author:** ![tom\_vito](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/tom_vito/32/6000_2.png) [@tom\_vito](https://forums.speedlife.net/u/tom_vito)\ **Post date:** [April 29, 2007, 9:04am UTC](https://forums.speedlife.net/t/91-305-engine/189411/63 "2007-04-29T09:04:10Z")
> [@FS: 2007 GSXR 600](https://forums.speedlife.net/t/fs-2007-gsxr-600/29411/18): > > Hey neonracer, there is a new issue of “Camaro Performers” mag on the shelf. They do a simple low-budget build-up on a 305 and get 350ftlb and 372HP out of it. They used a stock 305 that was lying around in their garage (dished pistons - low compression) and standard flat tappet cam. Yours probably has the flat top pistons (tbi motor - higher compression) and roller cam, so you would do even better. They did not rebuild the bottom end, it was left factory. > > The key components were Enginequest Vortec 180cc heads that they milled 0.030 off to get 60cc chamber size and a Comp XE268H flat tappet hydraulic 224/230 @ 0.050 & 0.477/0.480 lift (you could probably do better here with a roller if your motor is already set up for a roller cam. > > They added an Edelbrock RPM air-gap vortec intake and a 650CFM Demon carb (pretty standard stuff). > > No prices were given in the story except the retail on the bare heads which was $225 each. > > Just saw it yesterday and thought ya might wanna grab a copy. :bigok: He already has it and is already planning the return of the killer 305. It seemed to me that after the money they dumped into a 305 they could have built something better. I was figuring with machine work, valves, springs, seals, guides, intake, carb, etc, etc. they have to be into over $1400.00. Seems like a lot for a 305… --- _[View the full topic](https://forums.speedlife.net/t/91-305-engine/189411)._