3/11/2023 0 Comments E303 cam specs with 1.7 rockers![]() ![]() This isn't the same car but it has a 5.0 with the same heads and cam. the customer was really happy but before were able to get it tuned and dyno'd he decided to put on a supercharger and with 9 lb's of boost it made around 450 to the rear wheels with a very conservative tune to help save the stock shortblock. I had to flycut the stock pistons for clearance though. I put together a mustang with the stock shortblock and a set of Edelbrock performer RPM heads and I used the xe274 cam. Some of the split pattern Extreme energy cams from Comp Cams are good. I've had 3 cars with the b303 and my daily driver now has a f303. Those cams are good but there's much better on the market. The B303 was the first performance roller on the market and is also the oldest technology. All the 5.0 roller stuff bolts right in and a set of AFR 185's would make it a lot of fun. If you can find a 351 from a pickup, 94 up I believe, you can have a 351 and a roller cam, as the later models came with roller blocks. It was a wild ride on the street with a light rearend, 4.10's and a 5 speed. I put a 5.0 in a Ranger with a set of the gt40p's, a b303 cam and 1.7 rockers and it made 290 to the wheels on the dyno. The best factory heads available are the Explorer GT40p's but they're only good for around 280-290 rwhp. There are some el-cheapo aluminum heads on Ebay.but not too often recommended by the Mustang crowd. Edelbrock's are hard to beat for the money.but still expensive. Trick flow's are not bad but AFR heads are really good and have taken over the Mustang scene. If this has all been covered before I would appreciate a pointer to the thread, but I did not find this in my search. I lean toward carburated for build economy and simpler electrical, but would consider EFI and aftermarket controller. A few of questions for the blue oval guys:ġ) is there an alternate more economical head out there that might get close to the AFR for results?Ģ) assuming the AFR heads, what cam would you recommend for a stick shift highboy that will be for highway/cruising? A bit of lumpy idle is not a bad thing, but want it to maintain good street manners and reasonable economy.ģ) The Car Craft build used a Road Demon 625 cfm carb on a Weiand dual-plane. Now those AFR heads list for $1450 which is doable but pricey. Lists the basic specs and shows their results with the AFR 165cc heads and a set of stepped tri-y headers plus some 1.7:1 roller rockers with everything else stock - not too shabby 405hp and 380 ft-lb. Talking to my son who hot rodded a Fox body Mustang a few years back I am leaning towards a 302 from the '83-'93 range for the roller cam as opposed to a 351. Considering an engine for a new '32 build I am a fan of Ford in Ford. ![]()
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