383 build question
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Heel & Toe
Joined: Aug 2015
Posts: 16
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383 build question
hi all. im Shure my build is not unique by far. just wondering what hp , tq and 1/4 mile time my build should have. I have a good idea what it should have . I would like your feedback good or bad. my assembly should be back in a week or so from the machine shop. build is as follows for my 93' automatic. skat forged 383 rotating assembly 3.75 stroke, 5.7 rod, trickflow 195's lightly ported, edlebrock fi intake, 52mm throttle body, GM hot cam with 1.6 rockers, 1-7/8 headers, compression is about 10 to 1. not sure what size injectors I will use, not sure on the tune either. I believe the rear gears are 2.59. also would like advise on what upgrades to the auto tranny I should have done including the convertor and the cost to do so. vehicle will see some track time, but mainly for tearing up the street with the maximum trips being under 100 miles. I thank you in advance for your input .
Melting Slicks
Joined: Sep 2010
Posts: 2,422
Likes: 202
after a mandatory batch / speed density tunes. Injectors should start at 30lbs your tuner should provide you with the Final decision. you mean SCAT rotate. What cc for the heads? stock springs??? if you are projecting 10:1 you must have dished pistons. Due to very limited CC options for the LT1 heads. I would estimate 390 - 440 Your 2.59 gears really should be updated. Running on the strip you will need a Dana 44 upgrade. The Dana 36 will be in jeopardy. You should upgrade to a higher stall TC. How many miles are on the 4L60 To many open variables. to give you a real ET. your weight and missing build info.
Drifting
Joined: Oct 2005
Posts: 1,918
Likes: 50
From: Angier nc
I would want more compression if it were mine but if tuned properly no reason it can't run well and be fun to drive.
A couple of observations;
If your headers are truly 1 7/8 primary tubes they are too big.I ran 1 5/8 on my 383 and made 441 rwhp. 1 3/4 would be the largest I would go.
I would recommend at least 3.07 gears and a Dana 44 with 3.45 would be fun.
Tranny may/may not hold up as is.I wouldn't spend the $$$ for a quality converter(2800-3000 stall)until my trans was built.
A couple of observations;
If your headers are truly 1 7/8 primary tubes they are too big.I ran 1 5/8 on my 383 and made 441 rwhp. 1 3/4 would be the largest I would go.
I would recommend at least 3.07 gears and a Dana 44 with 3.45 would be fun.
Tranny may/may not hold up as is.I wouldn't spend the $$$ for a quality converter(2800-3000 stall)until my trans was built.
