91sLXeeper

I'm building a 302 and im wondering what kind of horse power i can expect both to the flywheel and the rear wheels. Its an 87 block with stock crank(all new bearings) and stock rods(also has new bearings) with flat top pistons with 4 valve relieves(+3cc volume). I have a hydraulic flat tappet cam in it from crane cams ( 276/276 .498/.498) Im going to be using gt40p heads from a 97 explorer (milled .010, port and polished, 3 angle valve job) with the trickflow valve spring upgrade kit and proform 1.6 roller rockers. for air/fuel im going with a Weiand street warrior high rise intake with a holley 650cfm electric choke. Ill be using an aluminum driveshaft and 3.73 rear end gears in an sn95 rear axle assembly. oh, and ill be using a T5 not an AOD. what should i be seeing on the dyno and what times should i expect on the 1/4 mile?

mjr46

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302army187

around 260 to the wheels, and low 13's high 12's if you can drive

87Stallion

Hell up here that barely gets you a 14 sec car. I had a VERY similar setup and at 4000 ft above sea level I ran a best of 13.89 and mine made 270 RWHP

holyshift

As stated close to 250-260ish,if you can drive it 12.90's 13.0's.

sn95_331_GT_ yellow

13 flat, 250ish rwhp

91sLXeeper

I forgot to mention the heads are ported and polished, and ill have full length headers and an offroad xpipe full exhaust. also ill be using a 150 shot eventually

Tha Boss

The guys up top are pretty close. Maybe 265 to rear wheels. Low 13's on the time!