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Username Post: Need 383 Input For Build
Super Senior Member
Posts: 3808

Loc: Bedford, Texas, USA
Reg: 11-13-02
02-14-20 03:59 PM - Post#2786521    
    In response to LSS1333

I couldn't be happier with the 383 I built for my Express van.

6" rods and forged flat tops with 2 deep valve reliefs. +6cc.

It is 11:1 compression with 0.040" quench.

Assault Racing castings ported by Lloyd Elliot that ended up around 215cc.

Lunati Bootlegger 232/244 @ 0.050 roller on a 108 LSA and 104 ICL.

Rhoads V-Max lifters that knock 20° iff the duration at lower engine speeds.

Mercruiser dual plane MPI intake with a 1,200 cfm 4bbl throttle body.

4" air intake with a 100mm MAF sensor.

Doug Thorley Tri-Ys into the stock dual 3" exhaust tubing.

Dual 3" in/Single 4" out muffler.

Pulls strong with a 2,800 stalled 4L85E and 5.13 rear gear.
1983 G20 Van, 350 TPI, Ported 906 Vortecs, Edelbrock 3817 Base, ASM oversize runners. Reed Custom Roller cam, 700r4, 12 bolt with 3.08 gears, Doug Thorley Tri-Y headers, true duals

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