Forged GM 5.3L
08-13-2008, 11:26 AM
#11
Recently punched a 5.3 to a 3.905" bore (.007 over from standard LS1). My setup-
Diamond Racing forged flat tops- $500
Scat forged h-beams w/ ARP bolts $400
Stock crank (55k miles polished out to within standard specs-
Machine work/bearings etc-$500
A iron block LS1/6 bottom end that will hold to 700 hp that you can spray the sh*t out of for under $1500-
Diamond Racing forged flat tops- $500
Scat forged h-beams w/ ARP bolts $400
Stock crank (55k miles polished out to within standard specs-
Machine work/bearings etc-$500
A iron block LS1/6 bottom end that will hold to 700 hp that you can spray the sh*t out of for under $1500-
08-13-2008, 12:44 PM
#14
There is enough material in the 5.3 block for you to bore it .124 over size to the stock 346ci, 5.7 LS1 bore, making it an iron block version of the aluminum LS1 engine. Aftermarket forged pistons are much easy to get for the LS1 bore. Both the 5.3 LM7 and the 5.7 LS1 share the same crank, so the stroke is the same meaning you could also put a 4" stroker crank in the over bored 5.3 block and have an iron block 383 if you wanted. 
08-13-2008, 04:25 PM
#15
There is enough material in the 5.3 block for you to bore it .124 over size to the stock 346ci, 5.7 LS1 bore, making it an iron block version of the aluminum LS1 engine. Aftermarket forged pistons are much easy to get for the LS1 bore. Both the 5.3 LM7 and the 5.7 LS1 share the same crank, so the stroke is the same meaning you could also put a 4" stroker crank in the over bored 5.3 block and have an iron block 383 if you wanted.
08-13-2008, 06:18 PM
#18
Hello. Is somebody who can give me some good advice about my truck project. The reason I wonder if I can run with my stock bottom of 5.3 engine. But all my plan is-
210/218 Cam bec it is ok for tow my jeep or 4 wheeler sometimes. Or need to get a little bigger cam?
LS6 Yellow valvesprings
7/16 pushrod to find correct fit for aftermarket cam
Yank Highstall converter TT3000
Shift kit (might to get fully builder El60E probably El65E From finishline.com
I wonder if I could run single front mount turbo and run big intercooler. Will make alot power. What the horsepower can go 400-600? What size of injector needs to be. Do I need to run 255LPH fuel pump correct? And maybe run nitrous also wet or dry kit still not sure which one. Do you know Parish? What kind nitrous does he run wet or dry kit? I hope this thread correct to post. Or do I need to post on Forced Induction THREAD? Please let me know. Remind you if you not understand my grammar. Please tell me. I will try to explain clear since I am deaf. Thanks yall.
Luke
210/218 Cam bec it is ok for tow my jeep or 4 wheeler sometimes. Or need to get a little bigger cam?
LS6 Yellow valvesprings
7/16 pushrod to find correct fit for aftermarket cam
Yank Highstall converter TT3000
Shift kit (might to get fully builder El60E probably El65E From finishline.com
I wonder if I could run single front mount turbo and run big intercooler. Will make alot power. What the horsepower can go 400-600? What size of injector needs to be. Do I need to run 255LPH fuel pump correct? And maybe run nitrous also wet or dry kit still not sure which one. Do you know Parish? What kind nitrous does he run wet or dry kit? I hope this thread correct to post. Or do I need to post on Forced Induction THREAD? Please let me know. Remind you if you not understand my grammar. Please tell me. I will try to explain clear since I am deaf. Thanks yall.
Luke
08-13-2008, 07:54 PM
#19
You have a 5.3L and want to know what you can do with it? Well three options as Kyle pointed out...
1) leave it as is, add a power adder such as a turbo, blower or nitrous. Your looking at a max of 500rwhp before you get in trouble for your stock pistons. (there are no off the shelf forged pistons).
note: talking conservatively here, I know Bill is making more as is Rick as are a few others but I'm doing a rule of thumb here.
2) Bore out your block as mentioned above to a 5.7L 350ci. With that you'll have a healthy and strong LS1 that you can boost up as much as you want (forged pistons are available) or run a big shot on your truck. Now with forged stuff your looking at alot of power with lots of different potential, safely looking at 650-700rwhp
3) Bore + Stroke it out to a 6.3L 383ci. Now you have a forged TORQUE monster that you can do what you will to it and you'll have lots of power.
Note: being stroked you can't spin it as high as the 5.7L, your looking at maybe 700rwhp-800rwhp safely. But a much torquier and wider power band.
Hope that helps.
1) leave it as is, add a power adder such as a turbo, blower or nitrous. Your looking at a max of 500rwhp before you get in trouble for your stock pistons. (there are no off the shelf forged pistons).
note: talking conservatively here, I know Bill is making more as is Rick as are a few others but I'm doing a rule of thumb here.
2) Bore out your block as mentioned above to a 5.7L 350ci. With that you'll have a healthy and strong LS1 that you can boost up as much as you want (forged pistons are available) or run a big shot on your truck. Now with forged stuff your looking at alot of power with lots of different potential, safely looking at 650-700rwhp
3) Bore + Stroke it out to a 6.3L 383ci. Now you have a forged TORQUE monster that you can do what you will to it and you'll have lots of power.
Note: being stroked you can't spin it as high as the 5.7L, your looking at maybe 700rwhp-800rwhp safely. But a much torquier and wider power band.
Hope that helps.
08-13-2008, 08:17 PM
#20
You have a 5.3L and want to know what you can do with it? Well three options as Kyle pointed out...
1) leave it as is, add a power adder such as a turbo, blower or nitrous. Your looking at a max of 500rwhp before you get in trouble for your stock pistons. (there are no off the shelf forged pistons).
note: talking conservatively here, I know Bill is making more as is Rick as are a few others but I'm doing a rule of thumb here.
2) Bore out your block as mentioned above to a 5.7L 350ci. With that you'll have a healthy and strong LS1 that you can boost up as much as you want (forged pistons are available) or run a big shot on your truck. Now with forged stuff your looking at alot of power with lots of different potential, safely looking at 650-700rwhp
3) Bore + Stroke it out to a 6.3L 383ci. Now you have a forged TORQUE monster that you can do what you will to it and you'll have lots of power.
Note: being stroked you can't spin it as high as the 5.7L, your looking at maybe 700rwhp-800rwhp safely. But a much torquier and wider power band.
Hope that helps.
1) leave it as is, add a power adder such as a turbo, blower or nitrous. Your looking at a max of 500rwhp before you get in trouble for your stock pistons. (there are no off the shelf forged pistons).
note: talking conservatively here, I know Bill is making more as is Rick as are a few others but I'm doing a rule of thumb here.
2) Bore out your block as mentioned above to a 5.7L 350ci. With that you'll have a healthy and strong LS1 that you can boost up as much as you want (forged pistons are available) or run a big shot on your truck. Now with forged stuff your looking at alot of power with lots of different potential, safely looking at 650-700rwhp
3) Bore + Stroke it out to a 6.3L 383ci. Now you have a forged TORQUE monster that you can do what you will to it and you'll have lots of power.
Note: being stroked you can't spin it as high as the 5.7L, your looking at maybe 700rwhp-800rwhp safely. But a much torquier and wider power band.
Hope that helps.
