383 power
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Teching In
Joined: Jan 2008
Posts: 35
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From: Amarillo TX
383 power What the hell everyone else does it so lets see what kinda power you guys think i could make
383 stroker Prc 2.5 LS6 heads 2.04 1.57 with 248/254 .611 .613 114 wiend LS6 style aluminum intake or same combo with tfs 215 heads
Oh yeah A4
383 stroker Prc 2.5 LS6 heads 2.04 1.57 with 248/254 .611 .613 114 wiend LS6 style aluminum intake or same combo with tfs 215 heads
Oh yeah A4
well I am finishing my motor build this weekend, its a 396ci with TSP 2.5 and a 246/252 .633/.643 110
I am hoping for 470rwhp and about 450rwtq with a 4.125 should be a torque monster
I am hoping for 470rwhp and about 450rwtq with a 4.125 should be a torque monster
Hmmm. Through an auto with all supporting bolt-ons? I'll say 460ish rwhp/tq... The LS6-style intake is going to hold you back a bit. I am looking at a 90-92mm set-up for my 383 right now...
11 Second Club
Joined: Jun 2005
Posts: 1,537
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From: Was New Orleans, but swam to Baton Rouge
I would expect anywhere between 450 rwhp and 520 rwhp. It is really hard to say. There is always the question of how that cam with work with each set of heads. I think the best results would come from the Trickflow heads though. What other mods are you thinking of electric water pump, etc? What type of converter do you have and what rear gears. All of those will also have an impact on the final chassis dyno numbers.
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my 395ci made 458rwhp/461tq
Livernois Stg III's with 231/238 112LSA Cam Motion cam
http://rides.webshots.com/photo/2593...rK?vhost=rides
when dynoed car had...
- ZR1's wih MT ET Radials at 20 psi (forgot to add air)
- 3" Steel driveshaft
- Moser 12 bolt w/ 3.90 gears
Only pass was 11.47 @ 124.3mph (broke d/s before and trans after)
Livernois Stg III's with 231/238 112LSA Cam Motion cam
http://rides.webshots.com/photo/2593...rK?vhost=rides
when dynoed car had...
- ZR1's wih MT ET Radials at 20 psi (forgot to add air)
- 3" Steel driveshaft
- Moser 12 bolt w/ 3.90 gears
Only pass was 11.47 @ 124.3mph (broke d/s before and trans after)
TECH Enthusiast
Joined: May 2006
Posts: 600
Likes: 0
what exactly is a big bore 383? i thought the 383 had a .030 bore and the different crank... could someone please explain. i would think that a larger bore would equal more cubes and make it like a 388 or something like that ya know? anyways ...
All bore 383 would be a 4.102" bore and a stock stroke of 3.622".
Otherwise you would make a 383 by using a stock LS1 block honed to 3.905" and installing a 4" crank with the appropriate rod and piston set.
IBADAIR beat me to it....
Otherwise you would make a 383 by using a stock LS1 block honed to 3.905" and installing a 4" crank with the appropriate rod and piston set.
IBADAIR beat me to it....
On The Tree
Joined: Jan 2003
Posts: 167
Likes: 0
From: Fair Oaks, CA
The 'Big Bore' 383 we did was nothing like anything else out there.
I won't use aftermarket sleeved blocks.
We used an Iron 6L block bored to 4.060".
Eagle crankshaft (stock stroke) that we had offset ground to a 3.70" stroke.
SBC 6.125" rods.
Custom Pistons.
I won't use aftermarket sleeved blocks.
We used an Iron 6L block bored to 4.060".
Eagle crankshaft (stock stroke) that we had offset ground to a 3.70" stroke.
SBC 6.125" rods.
Custom Pistons.