383 Heads and Cam Help
383 Heads and Cam Help Ive used the search button to try to find out what cam should be used with a 383 LS1 but Im not finding what I need. I see mainly people using small cams for streetability.
Im looking for a lot of power! The car is a DRAG ONLY car! No street time so streetability is not an issue. I know the MS3, Trex, G5x4, etc. are the big cams for a 346....What is a big spec cam for a 383??
What heads are the big power heads for a 383 stroker? AFR 205s or 225?
Thanks in advance!
Im looking for a lot of power! The car is a DRAG ONLY car! No street time so streetability is not an issue. I know the MS3, Trex, G5x4, etc. are the big cams for a 346....What is a big spec cam for a 383??
What heads are the big power heads for a 383 stroker? AFR 205s or 225?
Thanks in advance!
Hydraulic roller, right?
You could go as big as you want ( depending on head flow numbers and how much valve relief you have in your pistons ) .
I run a 261/267 hydraulic roller in my 408 DAILY driver. It's big, but do-able.
You could go as big as you want ( depending on head flow numbers and how much valve relief you have in your pistons ) .
I run a 261/267 hydraulic roller in my 408 DAILY driver. It's big, but do-able.
Cam and heads choice depends on whether you're running an all-stroke 383 or and all-bore 383. Both will perform better with AFR 225s, but the valve events will be different depending on how you got your extra cubes.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
It would be 383 stroker, maybe even a 393 stroker (still doing some researching on the 393 stroker). With the 346 I made the mistake of getting a 228/232 cam instead of going all the way with a trex, ms3, g5x4 or something similar. I dont want to make this mistake with the new setup, I want to go all the way the first time around! I just dont know what is considered big/track only for those setups
As you're doing your research on your shortblock, also check to see if it has valve reliefs. I would be shocked if it didn't.
Since you have an all-stroke 383, you'll want about 2 degrees more of LSA than if it were all bore. Why? Because longer strokes and higher R/S ratios increase piston dwell time at TDC, making the engine act like it has increased overlap.
I'd do something like a 242/250 on a 112LSA for an all stroke and 110LSA for all bore. Run AFR 225 heads with the chambers sized to give you the static compression you want.
Since you have an all-stroke 383, you'll want about 2 degrees more of LSA than if it were all bore. Why? Because longer strokes and higher R/S ratios increase piston dwell time at TDC, making the engine act like it has increased overlap.
I'd do something like a 242/250 on a 112LSA for an all stroke and 110LSA for all bore. Run AFR 225 heads with the chambers sized to give you the static compression you want.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
TECH Fanatic
Joined: Jan 2002
Posts: 1,205
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From: harrisburg, pa
Originally Posted by Patrick G
As you're doing your research on your shortblock, also check to see if it has valve reliefs. I would be shocked if it didn't.
Since you have an all-stroke 383, you'll want about 2 degrees more of LSA than if it were all bore. Why? Because longer strokes and higher R/S ratios increase piston dwell time at TDC, making the engine act like it has increased overlap.
I'd do something like a 242/250 on a 112LSA for an all stroke and 110LSA for all bore. Run AFR 225 heads with the chambers sized to give you the static compression you want.
Since you have an all-stroke 383, you'll want about 2 degrees more of LSA than if it were all bore. Why? Because longer strokes and higher R/S ratios increase piston dwell time at TDC, making the engine act like it has increased overlap.
I'd do something like a 242/250 on a 112LSA for an all stroke and 110LSA for all bore. Run AFR 225 heads with the chambers sized to give you the static compression you want.
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how do these cams that yall are saying to use act on the street ( not meaning to hijack your thread black8banger) i am in teh market for a new cam myself for my all stroke 383
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Verdad Gallardo ta_silver_bullet: what kind of 1/4 times does your 383 setup run? and what kinda power is it putting out?
Patrick: What kinda lift is a good lift for a track only 383 all stroke? Also, since you know your converters, what stall would you suggest for that setup (also lockup or nonlockup?)
Thanks guys yall are a big help!
Patrick: What kinda lift is a good lift for a track only 383 all stroke? Also, since you know your converters, what stall would you suggest for that setup (also lockup or nonlockup?)
Thanks guys yall are a big help!
Originally Posted by Black8Banger
ta_silver_bullet: what kind of 1/4 times does your 383 setup run? and what kinda power is it putting out?
Patrick: What kinda lift is a good lift for a track only 383 all stroke? Also, since you know your converters, what stall would you suggest for that setup (also lockup or nonlockup?)
Thanks guys yall are a big help!
Patrick: What kinda lift is a good lift for a track only 383 all stroke? Also, since you know your converters, what stall would you suggest for that setup (also lockup or nonlockup?)
Thanks guys yall are a big help!
no dyno yet im trying to wait to install my TNT kit first so i can get NA and N2O runs. i made 375rwhp/372rwtq with all the same mods just no 383. i am still using a VERY small xe-r224 cam on my 383 along with stock LS1 heads becasue i broke a valve spring and it put a gash in the piston. so i just went ahead and forged the bottom end and stroked it at the same time, but i figured i would upgrade heads and bigger cam later. as far as track times my car weighs 3900 pounds race weight with me in it i ran on 245 street tires (no traction with teh 383 now). i ran a best of 12.7 @108 with a 1.9 60' before the 383. with the 383 crappy track conditions 60' was 2.2 and i ran a pitiful 13.0@112mph. i figure the way teh car sits now with dr's or a et streets i would get low 12's with a decent 60'. my 383 isnt at all impresive yet and i feel that is becasue of the small cam and stock heads i had to use, but i didnt expect anything more from it yet i just did it and knew when i upgraded later it would all work out
Originally Posted by Black8Banger
Ive used the search button to try to find out what cam should be used with a 383 LS1 but Im not finding what I need. I see mainly people using small cams for streetability.
Im looking for a lot of power! The car is a DRAG ONLY car! No street time so streetability is not an issue. I know the MS3, Trex, G5x4, etc. are the big cams for a 346....What is a big spec cam for a 383??
What heads are the big power heads for a 383 stroker? AFR 205s or 225?
Thanks in advance!
Im looking for a lot of power! The car is a DRAG ONLY car! No street time so streetability is not an issue. I know the MS3, Trex, G5x4, etc. are the big cams for a 346....What is a big spec cam for a 383??
What heads are the big power heads for a 383 stroker? AFR 205s or 225?
Thanks in advance!
Now that's a cam.
Originally Posted by TSP website
TSP Texas Giant Cam: 248/254, .629"/.622", 113 LSA
2200-6600 RPM Power Band with 400+ cid engines; This cam is designed for the larger cubic-inch engines and is NOT for stock-cid applications
2200-6600 RPM Power Band with 400+ cid engines; This cam is designed for the larger cubic-inch engines and is NOT for stock-cid applications
Originally Posted by kevredz
I'm running the MTI 2R's and the R1 camshaft (more of a driveability cam) in my stroker 383. I'm curious to what "track only" cams work the best with the 383 also.
what numbers did you put down and whats your track times if you dont mind me asking
Originally Posted by 1QuickT-A
Local guy here in AL is running a 383 stroker with AFR 205's, Fast 90/90, with the TSP "Giant" cam and he put down 506rwhp thru a T-56 and a 9in..
how steetable is the car with that cam i know its pretty damn big
I'm running 11.3-11.5's at 118-121 depending on the DA(1000-3000). I put down 390 SAE corrected rwhp and 550 rwtq (A3 dyno #'s) I need a re-stall, the converter is a little too tight. I'm hitting 1.65-1.70 60's.
Originally Posted by kevredz
I'm running 11.3-11.5's at 118-121 depending on the DA(1000-3000). I put down 390 SAE corrected rwhp and 550 rwtq (A3 dyno #'s) I need a re-stall, the converter is a little too tight. I'm hitting 1.65-1.70 60's.
Originally Posted by ta_silver_bullet
nice. i had my 383 built and i instaled it but i didnt have enough cash to do heads and cam so its a 383 with stock ls1 heads and a xe-r224cam lol. i had to at least rebuild my stokc motor so i figured while it was aprt i would stroke and forge it so now im looking into heads and cam for it and still be very streetable
Last edited by kevredz; Aug 22, 2005 at 01:08 AM.
Originally Posted by stang killer
Have you taken a look at TSP's texas giant.
It seems like a hell of a cam. I like the power band. My rev is at 6600.