383 Stroker build for 1980 Corvette
Thread Starter
Racer
Joined: Jul 2007
Posts: 397
Likes: 77
From: Jasper, GA
383 Stroker build for 1980 Corvette
Just left the engine builder after a few dyno pulls and the 383 stroker ended up at 511HP @ 5700 and 540T @ 3700.
Original L-48 (190hp) Engine was re-built with Eagle steel crank, SRP Pro-series forged pistons, Morel lifters, Eagle Racing H-beam rods, Crane
mild street cam, AFR 195 heads, Performer Air-gap intake, 750 DP mechanical QuickFuel carb(electric choke), MSD Pro-Billet dist. and converted to hydraulic roller.
Built by Rick from Metroplex Auto Machine located in Mesquite, Texas.
I'm excited...
Original L-48 (190hp) Engine was re-built with Eagle steel crank, SRP Pro-series forged pistons, Morel lifters, Eagle Racing H-beam rods, Crane
mild street cam, AFR 195 heads, Performer Air-gap intake, 750 DP mechanical QuickFuel carb(electric choke), MSD Pro-Billet dist. and converted to hydraulic roller.
Built by Rick from Metroplex Auto Machine located in Mesquite, Texas.
I'm excited...
Racer
Joined: Sep 2015
Posts: 250
Likes: 29
Just left the engine builder after a few dyno pulls and the 383 stroker ended up at 511HP @ 5700 and 540T @ 3700.
Original L-48 (190hp) Engine was re-built with Eagle steel crank, SRP Pro-series forged pistons, Morel lifters, Eagle Racing H-beam rods, Crane
mild street cam, AFR 195 heads, Performer Air-gap intake, 750 DP mechanical QuickFuel carb(electric choke), MSD Pro-Billet dist. and converted to hydraulic roller.
Built by Rick from Metroplex Auto Machine located in Mesquite, Texas.
I'm excited...
Original L-48 (190hp) Engine was re-built with Eagle steel crank, SRP Pro-series forged pistons, Morel lifters, Eagle Racing H-beam rods, Crane
mild street cam, AFR 195 heads, Performer Air-gap intake, 750 DP mechanical QuickFuel carb(electric choke), MSD Pro-Billet dist. and converted to hydraulic roller.
Built by Rick from Metroplex Auto Machine located in Mesquite, Texas.
I'm excited...
Instructor
Joined: May 2017
Posts: 100
Likes: 5
From: I don't do cities N/W Montana & Nor California
I'm literally doing this right now ~ Question: Using that "Air gap intake" did/do you have any issues fitting the stock hood? Or, are you doing modifications?
If so what.
Great results Btw, I would be very happy with those numbers.
If so what.
Great results Btw, I would be very happy with those numbers.
Thread Starter
Racer
Joined: Jul 2007
Posts: 397
Likes: 77
From: Jasper, GA
Well I don't have it in the car yet since I'm doing a complete restoration, but I read all the articles and asked on the forum here, and the consensus was that if I'm using the Holley or QuickFuel carb and the air-gap and a drop-base cleaner, it will fit. I believe what I read was that an Edelbrock carb will not work because it is higher.
Richard
Thread Starter
Racer
Joined: Jul 2007
Posts: 397
Likes: 77
From: Jasper, GA
Richard
Instructor
Joined: May 2017
Posts: 100
Likes: 5
From: I don't do cities N/W Montana & Nor California
Well I don't have it in the car yet since I'm doing a complete restoration, but I read all the articles and asked on the forum here, and the consensus was that if I'm using the Holley or QuickFuel carb and the air-gap and a drop-base cleaner, it will fit. I believe what I read was that an Edelbrock carb will not work because it is higher.
Richard
Richard
Are you doing anything to your Transmission to handle the extra power, like a Shift Kit ?
Thread Starter
Racer
Joined: Jul 2007
Posts: 397
Likes: 77
From: Jasper, GA
Richard
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Thread Starter
Racer
Joined: Jul 2007
Posts: 397
Likes: 77
From: Jasper, GA
I'll have more specifics on the cam on Friday when I pick it up but I believe its a crane retro-fit cam with duration 288/296, Lift .518/.539
Richard
Racer
Joined: Sep 2015
Posts: 250
Likes: 29
Well I don't have it in the car yet since I'm doing a complete restoration, but I read all the articles and asked on the forum here, and the consensus was that if I'm using the Holley or QuickFuel carb and the air-gap and a drop-base cleaner, it will fit. I believe what I read was that an Edelbrock carb will not work because it is higher.
Richard
Richard
Melting Slicks
Joined: Jul 2006
Posts: 2,346
Likes: 41
From: Toronto
How much do you save by using your existing engine for the build, instead of buying a crate 383 stroker?
I have an 80 as well, and wonder if it is worth it to keep the original engine and buy a crate motor, although being an 80 I can't see having the original engine adding much to the value of it.
Mine is a 4 speed. Would the factory 4 speed be able to handle the power increase?
I have an 80 as well, and wonder if it is worth it to keep the original engine and buy a crate motor, although being an 80 I can't see having the original engine adding much to the value of it.
Mine is a 4 speed. Would the factory 4 speed be able to handle the power increase?
Last edited by hzz; Jun 13, 2017 at 01:08 PM.
Drifting
Joined: Jun 2012
Posts: 1,990
Likes: 183
From: Port St. Lucie Fl
Just left the engine builder after a few dyno pulls and the 383 stroker ended up at 511HP @ 5700 and 540T @ 3700.
Original L-48 (190hp) Engine was re-built with Eagle steel crank, SRP Pro-series forged pistons, Morel lifters, Eagle Racing H-beam rods, Crane
mild street cam, AFR 195 heads, Performer Air-gap intake, 750 DP mechanical QuickFuel carb(electric choke), MSD Pro-Billet dist. and converted to hydraulic roller.
Built by Rick from Metroplex Auto Machine located in Mesquite, Texas.
I'm excited...
Original L-48 (190hp) Engine was re-built with Eagle steel crank, SRP Pro-series forged pistons, Morel lifters, Eagle Racing H-beam rods, Crane
mild street cam, AFR 195 heads, Performer Air-gap intake, 750 DP mechanical QuickFuel carb(electric choke), MSD Pro-Billet dist. and converted to hydraulic roller.
Built by Rick from Metroplex Auto Machine located in Mesquite, Texas.
I'm excited...
Thread Starter
Racer
Joined: Jul 2007
Posts: 397
Likes: 77
From: Jasper, GA
No secret, its just I'll be picking the motor up on Friday and he will be going over everything that was finally put in the motor. But saying that, we originally picked out the crane retro-fit hydraulic roller cam grind: HR-222/345-2S-12.90 IG which has a RPM power range 2000-6200 with advertised duration: 288/296 and lift: .518/.539
When I pick up the motor I will get all the info and, if its different, I'll post it here.
We were looking for a cam that would have a good idle, nice power band, and work well with the auto trans.
Richard
When I pick up the motor I will get all the info and, if its different, I'll post it here.
We were looking for a cam that would have a good idle, nice power band, and work well with the auto trans.
Richard
Racer
Joined: Sep 2015
Posts: 250
Likes: 29
How much do you save by using your existing engine for the build, instead of buying a crate 383 stroker?
I have an 80 as well, and wonder if it is worth it to keep the original engine and buy a crate motor, although being an 80 I can't see having the original engine adding much to the value of it.
Mine is a 4 speed. Would the factory 4 speed be able to handle the power increase?
I have an 80 as well, and wonder if it is worth it to keep the original engine and buy a crate motor, although being an 80 I can't see having the original engine adding much to the value of it.
Mine is a 4 speed. Would the factory 4 speed be able to handle the power increase?
So far, i've had no issues with mine. In the future, i'm sure a 5 or 6 speed will be needed. But for now, it's working fine.
Thread Starter
Racer
Joined: Jul 2007
Posts: 397
Likes: 77
From: Jasper, GA
How much do you save by using your existing engine for the build, instead of buying a crate 383 stroker?
I have an 80 as well, and wonder if it is worth it to keep the original engine and buy a crate motor, although being an 80 I can't see having the original engine adding much to the value of it.
Mine is a 4 speed. Would the factory 4 speed be able to handle the power increase?
I have an 80 as well, and wonder if it is worth it to keep the original engine and buy a crate motor, although being an 80 I can't see having the original engine adding much to the value of it.
Mine is a 4 speed. Would the factory 4 speed be able to handle the power increase?
I just thought I will be moving in about 2-3 years and didn't want to cart the original engine along so I decided to do a rebuild. I have around $6500+ in parts alone, but I know that everyone of the parts is of good quality.
I actually feel better having the original engine ready to go back into the car with the original engine stampings. You never know 10-20 years from now how valuable that will be, even on a 1980...
Richard
Melting Slicks
Joined: Jun 2016
Posts: 2,979
Likes: 332
From: Woodinville WA
540 ft lbs @ 3,700 rpm from a 383; no. Not even with a tuned long runner length intake and stepped 4-2-1 headers and a tuned exhaust length.
I just went through an engine builder / dyno operator's list of over 200 combinations and dyno results and not a single 383 hit that number.
Adam
Thread Starter
Racer
Joined: Jul 2007
Posts: 397
Likes: 77
From: Jasper, GA
Reading between the lines: "Those are DEFINITELY (heavily) corrected #'s".
540 ft lbs @ 3,700 rpm from a 383; no. Not even with a tuned long runner length intake and stepped 4-2-1 headers and a tuned exhaust length.
I just went through an engine builder / dyno operator's list of over 200 combinations and dyno results and not a single 383 hit that number.
Adam
540 ft lbs @ 3,700 rpm from a 383; no. Not even with a tuned long runner length intake and stepped 4-2-1 headers and a tuned exhaust length.
I just went through an engine builder / dyno operator's list of over 200 combinations and dyno results and not a single 383 hit that number.
Adam
Like I said earlier, the uncorrected numbers are 440hp/470ft-lbs. I explained earlier that the corrected numbers were based upon a correction of .20 I don't know how to be more honest than that.
Richard
Thread Starter
Racer
Joined: Jul 2007
Posts: 397
Likes: 77
From: Jasper, GA
Richard