c20 vs. F100
Thread Starter
|
Junior User
Joined: Jun 2013
Posts: 77
Likes: 0
c20 vs. F100
OK, i got this guy that keeps telling me he's gonna whoop up on me once i get my ride rolling. I'm in the process of building a 557 for my f100. he has a full roller 383 that he claims is making 650 hp and turns 7000 rpm no problem. i believe the 7000 rpm part, but can a 383 make 650? everyone i've talked to says it seems a little embellished to claim 650 hp from a 383 with 11:1 compression. I have no idea what mine will make. It's a 557 with a forged rotating assy. from probe, 11.88:1 compression, dOve-c heads (74 cc), roller rockers, minor port work on the exh. side, 2.19 int/ 1.71 ex., comp double springs, a comp xe284h extreme energy flat tappet cam, weind stealth intake, a holley 1050 dominator, msd ignition, and long tube headers. behind that i have a c-6 tranny, fairbanks shift kit full manual control, f-code band apply lever, alto band, alto clutches with extra kolene steels. i'm just wondering if i even have a chance? he says all day how bad his truck is, i'm supposed to check it out this friday. 
Super Moderator
Joined: Apr 2004
Posts: 34,499
Likes: 2,811
650? Summit sells a bunch of 383s and the highest power NA they list is 500, 600 with a supercharger.
http://www.summitracing.com/search/d...-3l-383?page=4
Similar numbers here:
506 HP Chevy 383 Stroker 100% Complete Turnkey Crate Engine
650 would seem a tall order for a NA 383.
As to the match up, clearly your larger motor is going to have a lot more torque over a broader rpm range than his peaky smaller motor. (relativly speaking) It will come down to how the trucks are set up, gears, tires etc. In a stock truck chassis for either truck, this amount of power is unusable--you will go up in smoke or break things or both.
http://www.summitracing.com/search/d...-3l-383?page=4
Similar numbers here:
506 HP Chevy 383 Stroker 100% Complete Turnkey Crate Engine
650 would seem a tall order for a NA 383.
As to the match up, clearly your larger motor is going to have a lot more torque over a broader rpm range than his peaky smaller motor. (relativly speaking) It will come down to how the trucks are set up, gears, tires etc. In a stock truck chassis for either truck, this amount of power is unusable--you will go up in smoke or break things or both.
Senior User
Joined: Jan 2012
Posts: 333
Likes: 1
From: Denver, Co
First off let me start by saying i have close to no idea what any of the parts on your engine are. Haha
Hot rod magazine did a build on a small block 383 stroker. They had alot more work into it than your engine but it peaked out at 505 hp. Im 99% sure you have him on power but without knowing anything about his engine its a guessing game. From what ive learned while watching racing is that if you get a better start out of the gate that fraction of a second could help you win.
Anyway your going against a chevy
its gonna rust to the ground by the time you guys get lined up.
Well ill let someone that knows what they are talking about take over. Good luck buddy. And we gotta see your engine.
Hot rod magazine did a build on a small block 383 stroker. They had alot more work into it than your engine but it peaked out at 505 hp. Im 99% sure you have him on power but without knowing anything about his engine its a guessing game. From what ive learned while watching racing is that if you get a better start out of the gate that fraction of a second could help you win.
Anyway your going against a chevy
its gonna rust to the ground by the time you guys get lined up. Well ill let someone that knows what they are talking about take over. Good luck buddy. And we gotta see your engine.
Junior User
Joined: Oct 2012
Posts: 92
Likes: 0
From: Aviston, Il
It is possible to make 650 HP out of 383 cid NA. It is very, very expensive though. Guys do it all of the time with the circle track stuff that I'm involved with. Heck, NASCAR builders make 800 out of a 358. But, I really doubt that its possible with 11:1 compression, and I am 100% positive that it wouldnt be very streetable. It's kinda like when people around here say "without pictures, its not true", without a dyno sheet, its not true.
Posting Guru
Joined: May 2010
Posts: 1,867
Likes: 3
From: Alton, MO
Your main problem will be getting your truck to bite. When it does your next problem will be broken parts. Until you line them up nobody knows. The Chevrolet is geared low assuming stock gears. There are many online calculators to help with gear choice. Find 1 & work out the best gear for your situation. You will launch out of the hole given superior torque. This isn't that rough Chevrolet truck with the camper shell on it that does wheelies is it?
Senior User
Joined: Jan 2013
Posts: 479
Likes: 0
From: Kingston, Pa. 18704
With 11 to 1 compression ratio I say: no way on his claimed HP numbers.
Your BBF should spank him big time "if" you could ever get it to hook up (which I seriously doubt).
With that said, it takes a lot of work and $$$$ to reach 2 HP per cubic inch.
I've been building race engines for nearly 30 years an we consistently see 650 HP on 328 (destroked 350) Chevy engines running 13:1 with alcohol @ 7500 RPM used in Nascar Modifieds.
I get goose bumps every time we run one on the dyno with a sheet of plexiglass between you and the engine.
Your BBF should spank him big time "if" you could ever get it to hook up (which I seriously doubt).
With that said, it takes a lot of work and $$$$ to reach 2 HP per cubic inch.
I've been building race engines for nearly 30 years an we consistently see 650 HP on 328 (destroked 350) Chevy engines running 13:1 with alcohol @ 7500 RPM used in Nascar Modifieds.
I get goose bumps every time we run one on the dyno with a sheet of plexiglass between you and the engine.
Posting Guru
Joined: Jul 2011
Posts: 1,650
Likes: 16
From: DFW Texas
What gas is he running? Race gas? Is he running a power adder on it? What gas are you running? Have you ever been over to 460ford.com or 429-460ford.com? They will give you a good idea of what you will make. In my opinion; anything that runs solely on race gas is not street-able. Your compression seems awfully high for pump gas and iron heads; not gonna run too well on pump gas. Now if u are running race gas; you will be ok. BTW, a holly 950hp would be a much better carb on the street.
Trending Topics
Posting Guru
Joined: Jul 2011
Posts: 1,650
Likes: 16
From: DFW Texas
Your main problem will be getting your truck to bite. When it does your next problem will be broken parts. Until you line them up nobody knows. The Chevrolet is geared low assuming stock gears. There are many online calculators to help with gear choice. Find 1 & work out the best gear for your situation. You will launch out of the hole given superior torque. This isn't that rough Chevrolet truck with the camper shell on it that does wheelies is it?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Freshman User
Joined: Apr 2013
Posts: 38
Likes: 0
Actually has a turbo'd small block in it now, the guy who owns it is on that new discovery show "Street Outlaws" or something like that.
I would love to see what his NA 11:1 650 horse 383 looks like
I would take whatever hes saying with a grain of salt, unless of course hes hiding a 250 shot or a big ol' turbo somewhere.
I would love to see what his NA 11:1 650 horse 383 looks like
I would take whatever hes saying with a grain of salt, unless of course hes hiding a 250 shot or a big ol' turbo somewhere.
Posting Guru
Joined: Jul 2011
Posts: 1,650
Likes: 16
From: DFW Texas
Actually has a turbo'd small block in it now, the guy who owns it is on that new discovery show "Street Outlaws" or something like that.
I would love to see what his NA 11:1 650 horse 383 looks like I would take whatever hes saying with a grain of salt, unless of course hes hiding a 250 shot or a big ol' turbo somewhere.
I would love to see what his NA 11:1 650 horse 383 looks like
I would take whatever hes saying with a grain of salt, unless of course hes hiding a 250 shot or a big ol' turbo somewhere.
Thread Starter
|
Junior User
Joined: Jun 2013
Posts: 77
Likes: 0
Your main problem will be getting your truck to bite. When it does your next problem will be broken parts. Until you line them up nobody knows. The Chevrolet is geared low assuming stock gears. There are many online calculators to help with gear choice. Find 1 & work out the best gear for your situation. You will launch out of the hole given superior torque. This isn't that rough Chevrolet truck with the camper shell on it that does wheelies is it?
Logistics Pro
Joined: Jun 2003
Posts: 3,924
Likes: 272
Spend some money and get your heads max ported. Your heads are going to limit your horsepower. Get your heads max ported by a reputable head shop...> Rein"Car"nation High Performance / porting services
Thread Starter
|
Junior User
Joined: Jun 2013
Posts: 77
Likes: 0
First off let me start by saying i have close to no idea what any of the parts on your engine are. Haha
Hot rod magazine did a build on a small block 383 stroker. They had alot more work into it than your engine but it peaked out at 505 hp. Im 99% sure you have him on power but without knowing anything about his engine its a guessing game. From what ive learned while watching racing is that if you get a better start out of the gate that fraction of a second could help you win.
Anyway your going against a chevy its gonna rust to the ground by the time you guys get lined up.
Well ill let someone that knows what they are talking about take over. Good luck buddy. And we gotta see your engine.
Hot rod magazine did a build on a small block 383 stroker. They had alot more work into it than your engine but it peaked out at 505 hp. Im 99% sure you have him on power but without knowing anything about his engine its a guessing game. From what ive learned while watching racing is that if you get a better start out of the gate that fraction of a second could help you win.
Anyway your going against a chevy
its gonna rust to the ground by the time you guys get lined up. Well ill let someone that knows what they are talking about take over. Good luck buddy. And we gotta see your engine.