383 LT1 build progress
04-26-2009, 01:58 AM
#1
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Thread Starter
Join Date: Nov 2002
Location: Richmond B.C.
Posts: 2,002
383 LT1 build progress
finally got my LT1 motor home on friday after several months of building it up slowly at the machine shop. spent a few hours on friday night and today going over things and bolting stuff up. not much to tell but the specs and plans, its going into my 95 camaro backed by a 4000 stall 4L60E, eventually id like to run a small shot of nitrous on it but it doesn't really need it, its just gonna be a wicked pump gas street car. i was going to engine dyno it to break it in etc. but we could not locate a carb manifold that would bolt up so ill have to wait for a chassis dyno session in the future. the motor will be 500+hp and 500+tq though, guys that run this combo put around 450 RWHP n/a should be a fun street car thats for sure.
SPECS:
- 383 CID factory LT1 block 4.030 bore, 3.75" stoke
- pro gram splayed billet main caps
- lunati sledgehammer forged crank converted to full internal balance
- scat h beam 6" rods
- mahle pistons flat top -5CC valve relief
- 12.4:1 CR 94 pump gas
- Advanced Induction 200cc CNC LT1 heads 2.00/1.56 manley valves, PAC beehive springs
- AI race ported factory LT1 intake
- AI custom billet hyd. roller cam 23x/24x .605 lift I/E 108 LCA
- jesel shaft mount 1.6/1.6 rockers
- GMPP lifters/hardware/valvecovers
- powerbond balancer
- MSD opti
- BBK twin 58mm throttle body
not pictured:
- ford motorsport 42lb/hr injectors
- pacesetter ceramic coated 1-3/4 to 3" headers
- TCI flexplate SFI
- LT4 starter/alt/ps pump
- alt relocation bracket
- MSD coil/wires
SPECS:
- 383 CID factory LT1 block 4.030 bore, 3.75" stoke
- pro gram splayed billet main caps
- lunati sledgehammer forged crank converted to full internal balance
- scat h beam 6" rods
- mahle pistons flat top -5CC valve relief
- 12.4:1 CR 94 pump gas
- Advanced Induction 200cc CNC LT1 heads 2.00/1.56 manley valves, PAC beehive springs
- AI race ported factory LT1 intake
- AI custom billet hyd. roller cam 23x/24x .605 lift I/E 108 LCA
- jesel shaft mount 1.6/1.6 rockers
- GMPP lifters/hardware/valvecovers
- powerbond balancer
- MSD opti
- BBK twin 58mm throttle body
not pictured:
- ford motorsport 42lb/hr injectors
- pacesetter ceramic coated 1-3/4 to 3" headers
- TCI flexplate SFI
- LT4 starter/alt/ps pump
- alt relocation bracket
- MSD coil/wires
its gonna be a beast I bet.
04-26-2009, 08:35 AM
#3
Registered User
Join Date: Sep 2001
Location: Woodstown, NJ
Posts: 4,154
finally got my LT1 motor home on friday after several months of building it up slowly at the machine shop. spent a few hours on friday night and today going over things and bolting stuff up. not much to tell but the specs and plans, its going into my 95 camaro backed by a 4000 stall 4L60E, eventually id like to run a small shot of nitrous on it but it doesn't really need it, its just gonna be a wicked pump gas street car. i was going to engine dyno it to break it in etc. but we could not locate a carb manifold that would bolt up so ill have to wait for a chassis dyno session in the future. the motor will be 500+hp and 500+tq though, guys that run this combo put around 450 RWHP n/a should be a fun street car thats for sure.
SPECS:
- 383 CID factory LT1 block 4.030 bore, 3.75" stoke
- pro gram splayed billet main caps
- lunati sledgehammer forged crank converted to full internal balance
- scat h beam 6" rods
- mahle pistons flat top -5CC valve relief
- 12.4:1 CR 94 pump gas
- Advanced Induction 200cc CNC LT1 heads 2.00/1.56 manley valves, PAC beehive springs
- AI race ported factory LT1 intake
- AI custom billet hyd. roller cam 23x/24x .605 lift I/E 108 LCA
- jesel shaft mount 1.6/1.6 rockers
- GMPP lifters/hardware/valvecovers
- powerbond balancer
- MSD opti
- BBK twin 58mm throttle body
not pictured:
- ford motorsport 42lb/hr injectors
- pacesetter ceramic coated 1-3/4 to 3" headers
- TCI flexplate SFI
- LT4 starter/alt/ps pump
- alt relocation bracket
- MSD coil/wires
SPECS:
- 383 CID factory LT1 block 4.030 bore, 3.75" stoke
- pro gram splayed billet main caps
- lunati sledgehammer forged crank converted to full internal balance
- scat h beam 6" rods
- mahle pistons flat top -5CC valve relief
- 12.4:1 CR 94 pump gas
- Advanced Induction 200cc CNC LT1 heads 2.00/1.56 manley valves, PAC beehive springs
- AI race ported factory LT1 intake
- AI custom billet hyd. roller cam 23x/24x .605 lift I/E 108 LCA
- jesel shaft mount 1.6/1.6 rockers
- GMPP lifters/hardware/valvecovers
- powerbond balancer
- MSD opti
- BBK twin 58mm throttle body
not pictured:
- ford motorsport 42lb/hr injectors
- pacesetter ceramic coated 1-3/4 to 3" headers
- TCI flexplate SFI
- LT4 starter/alt/ps pump
- alt relocation bracket
- MSD coil/wires
04-26-2009, 08:19 PM
#9
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Thread Starter
Join Date: Nov 2002
Location: Richmond B.C.
Posts: 2,002
chambers were cc'd to my specific combo at 56cc the intakes are 200cc with 2.00/1.56 manley valves, peak headflow is about 290cfm on the intake, 200cfm on the exh with no pipe extension whatsoever.
04-26-2009, 08:56 PM
#10
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Join Date: May 2008
Location: Dayton, Ohio
Posts: 84
Hook up the engine bay with a good cleaning to go along with your spotless engine. That thing will be a beast when its running. We are running close to the same parts besides I went with the 355 for some reason.
04-26-2009, 11:11 PM
#11
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Join Date: Apr 2007
Location: Lancaster, Texas
Posts: 549
Then let the program crunch the numbers and see how closely they'll match to what you get from your dyno runs. That will give me a pretty good idea of how accurate and reliable my program is.
If you don't have the rest of the head flow numbers, like from .100 to, say, .700, I can just use AFR 195 numbers to fill in the blanks. That won't be the 100% accurate way to do it, but the results should be really close.
As you probably already know, EAP is touted as being very sophicated giving very accurate results. I'll see just how true that is; for $500 it had better bet, LOL.
Thanks again,
Jake
West Point ROCKS!
04-26-2009, 11:25 PM
#12
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Join Date: Dec 2004
Location: Philly, Pa
Posts: 827
Very nice setup! just dropped in my 383, 195cc LE heads, similar flow put down #'s in sig. in a m6. your build looks very promising! we'll see though, a4 and that stall are pretty power heavy. also, what oil pan is that? and are those valve covers clearanced for the lt1 alt?
hope your not running the stock 10 bolt!
hope your not running the stock 10 bolt!
04-26-2009, 11:44 PM
#14
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Thread Starter
Join Date: Nov 2002
Location: Richmond B.C.
Posts: 2,002
Thanks for that. Since you posted such good, detailed information on your engine, I was going to plug the data into my Engine Analyzer Pro Version 2.1, simulation program.
Then let the program crunch the numbers and see how closely they'll match to what you get from your dyno runs. That will give me a pretty good idea of how accurate and reliable my program is.
If you don't have the rest of the head flow numbers, like from .100 to, say, .700, I can just use AFR 195 numbers to fill in the blanks. That won't be the 100% accurate way to do it, but the results should be really close.
As you probably already know, EAP is touted as being very sophicated giving very accurate results. I'll see just how true that is; for $500 it had better bet, LOL.
Thanks again,
Jake
West Point ROCKS!
Then let the program crunch the numbers and see how closely they'll match to what you get from your dyno runs. That will give me a pretty good idea of how accurate and reliable my program is.
If you don't have the rest of the head flow numbers, like from .100 to, say, .700, I can just use AFR 195 numbers to fill in the blanks. That won't be the 100% accurate way to do it, but the results should be really close.
As you probably already know, EAP is touted as being very sophicated giving very accurate results. I'll see just how true that is; for $500 it had better bet, LOL.
Thanks again,
Jake
West Point ROCKS!
04-26-2009, 11:49 PM
#15
Registered User
Thread Starter
Join Date: Nov 2002
Location: Richmond B.C.
Posts: 2,002
Very nice setup! just dropped in my 383, 195cc LE heads, similar flow put down #'s in sig. in a m6. your build looks very promising! we'll see though, a4 and that stall are pretty power heavy. also, what oil pan is that? and are those valve covers clearanced for the lt1 alt?
hope your not running the stock 10 bolt!
hope your not running the stock 10 bolt!
