383 ls1 horsepower estimated
12-17-2018, 09:02 PM
#1
Staging Lane
Thread Starter
383 ls1 horsepower estimated I’m in the middle of rebuilding my ls1 out of my 00 t/a I’ve bought a 4in stroke Lunati crank and rods dss pistons, should be around 11:1 compression, trickflow 220 heads with Manley 2.055 intake valves and 1.570 exhaust valves, tsp roller rockers , fast 102 intake & tb the cam specs are 242/250 .620/600 113 , car will be running 1&7/8 long tubes with a cut out until I get cash for a true duel exhaust, Will this thing make power? Trying to make 500ish wrhp thr a built 4l60e, 3600 yank stall and a 9in with 3:89 gears
12-18-2018, 07:23 AM
#2
With a few tweaks, I think you have an excellent chance of hitting close to 500+ whp with your stroker. However, the 3.9 bore isn't doing you any favors. Finding an LS2 block with a 4 inch bore would make a nice upgrade.
I think 11.1 compression is low for the cam you have listed. I would want ~ 11.5 with a cam that large.
Likewise, the LLSR low lash solid roller cam set ups are popular on this forum and tend to make more power. If you haven't bought a cam that might be worth researching. Cam Motion is a popular go to vendor. Quality lifters and adjustable roller rockers should be on your parts list.
An electric water pump will help in the higher rpm range.
Fuel system will need bigger than stock 00 LS1 injectors and more than a stock fuel pump to hit 500 whp.
Many 4 inch stroke LS1's tend to have piston rock and burn a lot of oil. Make sure you have the correct type of pistons to avoid an oil burner with piston rock. I'm not familiar with piston you have listed. Maybe KCS or someone else can explain the correct type of taper and ring packaging needed.
383 LS1 close to 500 whp.
My LS1 383 makes 465 whp with many older out dated parts Baby 229/229 .578 / .578 lift cam, TEA LS6 Stage 2.5 heads hand finished, 1 7/8 headers and ported 90 mm LS6 intake. Has 11.3 to 1 compression, Wiseco pistons, Jebel roller rockers. LS7 lifters. The engine isn't an oil burner and is rock free thanks to Wiseco's trick pistons. It's a fun street engine with stock manners
I think 11.1 compression is low for the cam you have listed. I would want ~ 11.5 with a cam that large.
Likewise, the LLSR low lash solid roller cam set ups are popular on this forum and tend to make more power. If you haven't bought a cam that might be worth researching. Cam Motion is a popular go to vendor. Quality lifters and adjustable roller rockers should be on your parts list.
An electric water pump will help in the higher rpm range.
Fuel system will need bigger than stock 00 LS1 injectors and more than a stock fuel pump to hit 500 whp.
Many 4 inch stroke LS1's tend to have piston rock and burn a lot of oil. Make sure you have the correct type of pistons to avoid an oil burner with piston rock. I'm not familiar with piston you have listed. Maybe KCS or someone else can explain the correct type of taper and ring packaging needed.
383 LS1 close to 500 whp.
My LS1 383 makes 465 whp with many older out dated parts Baby 229/229 .578 / .578 lift cam, TEA LS6 Stage 2.5 heads hand finished, 1 7/8 headers and ported 90 mm LS6 intake. Has 11.3 to 1 compression, Wiseco pistons, Jebel roller rockers. LS7 lifters. The engine isn't an oil burner and is rock free thanks to Wiseco's trick pistons. It's a fun street engine with stock manners
12-18-2018, 12:42 PM
#4
11 Second Club
Good replies. As said. It's not the easiest to hit 500rwhp with the 3.9" piston but it can be done. Also going through the stalled auto & the 9" which will eat some power. I go with everything that has been said. My 383 hit 500whp. But that was with STD correction & through an M6. Smaller cam too.
Last edited by SoFla01SSLookinstok; 12-18-2018 at 12:52 PM.
12-18-2018, 08:54 PM
#5
Staging Lane
Thread Starter
12-18-2018, 08:56 PM
#6
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Stroke has a way of eating duration. It is aggressive but might not be that bad. It will want to peak around 6800 rpm or so, so expect to rev to make power
12-18-2018, 09:05 PM
#7
Staging Lane
Thread Starter
With a few tweaks, I think you have an excellent chance of hitting close to 500+ whp with your stroker. However, the 3.9 bore isn't doing you any favors. Finding an LS2 block with a 4 inch bore would make a nice upgrade.
I think 11.1 compression is low for the cam you have listed. I would want ~ 11.5 with a cam that large.
Likewise, the LLSR low lash solid roller cam set ups are popular on this forum and tend to make more power. If you haven't bought a cam that might be worth researching. Cam Motion is a popular go to vendor. Quality lifters and adjustable roller rockers should be on your parts list.
An electric water pump will help in the higher rpm range.
Fuel system will need bigger than stock 00 LS1 injectors and more than a stock fuel pump to hit 500 whp.
Many 4 inch stroke LS1's tend to have piston rock and burn a lot of oil. Make sure you have the correct type of pistons to avoid an oil burner with piston rock. I'm not familiar with piston you have listed. Maybe KCS or someone else can explain the correct type of taper and ring packaging needed.
383 LS1 close to 500 whp.
My LS1 383 makes 465 whp with many older out dated parts Baby 229/229 .578 / .578 lift cam, TEA LS6 Stage 2.5 heads hand finished, 1 7/8 headers and ported 90 mm LS6 intake. Has 11.3 to 1 compression, Wiseco pistons, Jebel roller rockers. LS7 lifters. The engine isn't an oil burner and is rock free thanks to Wiseco's trick pistons. It's a fun street engine with stock manners
I think 11.1 compression is low for the cam you have listed. I would want ~ 11.5 with a cam that large.
Likewise, the LLSR low lash solid roller cam set ups are popular on this forum and tend to make more power. If you haven't bought a cam that might be worth researching. Cam Motion is a popular go to vendor. Quality lifters and adjustable roller rockers should be on your parts list.
An electric water pump will help in the higher rpm range.
Fuel system will need bigger than stock 00 LS1 injectors and more than a stock fuel pump to hit 500 whp.
Many 4 inch stroke LS1's tend to have piston rock and burn a lot of oil. Make sure you have the correct type of pistons to avoid an oil burner with piston rock. I'm not familiar with piston you have listed. Maybe KCS or someone else can explain the correct type of taper and ring packaging needed.
383 LS1 close to 500 whp.
My LS1 383 makes 465 whp with many older out dated parts Baby 229/229 .578 / .578 lift cam, TEA LS6 Stage 2.5 heads hand finished, 1 7/8 headers and ported 90 mm LS6 intake. Has 11.3 to 1 compression, Wiseco pistons, Jebel roller rockers. LS7 lifters. The engine isn't an oil burner and is rock free thanks to Wiseco's trick pistons. It's a fun street engine with stock manners
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12-19-2018, 11:42 AM
#8
I should have left "spec'd for the setup" out of my post. Since people can spec high, low, in the middle etc. and different people have different preferences.
If Darth says it's good, it's good, he has a better understanding of in depth valve events than I do. He made a really good point I didn't consider at first because I wasn't thinking... stroke. The long stroke changes things, and I was more considering cam size vs cubes, appreciate the correction Darth.
If Darth says it's good, it's good, he has a better understanding of in depth valve events than I do. He made a really good point I didn't consider at first because I wasn't thinking... stroke. The long stroke changes things, and I was more considering cam size vs cubes, appreciate the correction Darth.
12-19-2018, 12:38 PM
#9
11 Second Club
The cam you have chosen is a nice size. Not the biggest but getting up there. That cam on the 113 split is 20* of overlap. As 99 Black Bird stated his 383 with a little 229/229 cam makes nice power for the street. The cam in my 383 is 235/239 116+2 with only 5* of overlap. My power peaks around 6500-6600, carries to about 6800 & has it's roll over. I spin it to 7000-7200. I agree with Darth that with that cam it may peak around the 6800 rpm range.
12-19-2018, 08:21 PM
#10
My LS1 383 makes 465 whp with many older out dated parts Baby 229/229 .578 / .578 lift cam, TEA LS6 Stage 2.5 heads hand finished, 1 7/8 headers and ported 90 mm LS6 intake. Has 11.3 to 1 compression, Wiseco pistons, Jebel roller rockers. LS7 lifters. The engine isn't an oil burner and is rock free thanks to Wiseco's trick pistons. It's a fun street engine with stock manners
12-21-2018, 12:15 AM
#11
Staging Lane
Thread Starter
will the trickflow 220s be enough for A 383?
12-21-2018, 08:22 AM
#12
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Yes they'll be good
12-22-2018, 05:47 AM
#13
I agree with Darth the 4 inch stroke 383 will soak up a lot of duration. My impression from my experiences is if one takes a typical LS1 cam in a 346 and adds 5 to 7 degrees of intake and exhaust duration, it will drive about the same in an LS1 383 if all else is equal. The old 224 in my LS1 drove very well but the 229 in LS1 383 drives even better.
Likewise, Bret at Land Speed Cylinder mentioned we could do a custom Cam Motion hydraulic 238/244 for my 383 LS1 that would drive as well or better than a 231/236 in an LS1 but have more top end.
Will try to find my hard copy. My cell phone with the pictures of the different pulls died and lost the pictures last year. I lost easy access a lot info I had accumulated when that happened.
Likewise, Bret at Land Speed Cylinder mentioned we could do a custom Cam Motion hydraulic 238/244 for my 383 LS1 that would drive as well or better than a 231/236 in an LS1 but have more top end.
Will try to find my hard copy. My cell phone with the pictures of the different pulls died and lost the pictures last year. I lost easy access a lot info I had accumulated when that happened.
Last edited by 99 Black Bird T/A; 12-22-2018 at 06:47 AM.