What engine?
Thread Starter
Registered User
Joined: Oct 2011
Posts: 4
Likes: 0
From: Deer Island, OR
What engine? I'm new and have been reading a lot, just to much info to make a decision.
I have bought a 6cyl 74 firebird and going to put a 73 nose on it. I want to put in a newer chevy engine. I want 700hp, thinking T56 Viper 6 speed. I was thinking turbo. I want 25mpg when cruising.
I think the MPG can be accomplished.
What donor truck/car should I be looking at? I may even graft in the gauges and stuff. 5.3 or 6.0 liter?? Money is a slight concern.
It doesnt have to have a turbo to start but before I install the engine I would like to upgrade it so that its ready. Cam? valve springs? ARP bolts? Do I have to upgrade the rods and pistons?
VTEC? Cylinder drop off for mileage?
A little about me. Can MIG,TIG fab anything. Been working on cars for 30 years. Been into the Diesel seen for a while. Lost touch with the car performance side. I have my own auto repair business.
I'm open to ideas.
Thanks
Jon
I have bought a 6cyl 74 firebird and going to put a 73 nose on it. I want to put in a newer chevy engine. I want 700hp, thinking T56 Viper 6 speed. I was thinking turbo. I want 25mpg when cruising.
I think the MPG can be accomplished.
What donor truck/car should I be looking at? I may even graft in the gauges and stuff. 5.3 or 6.0 liter?? Money is a slight concern.
It doesnt have to have a turbo to start but before I install the engine I would like to upgrade it so that its ready. Cam? valve springs? ARP bolts? Do I have to upgrade the rods and pistons?
VTEC? Cylinder drop off for mileage?
A little about me. Can MIG,TIG fab anything. Been working on cars for 30 years. Been into the Diesel seen for a while. Lost touch with the car performance side. I have my own auto repair business.
I'm open to ideas.
Thanks
Jon
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Joined: Aug 2004
Posts: 1,373
Likes: 4
From: Auckland, Nth Is, New Zealand.
I'm new and have been reading a lot, just to much info to make a decision.
I have bought a 6cyl 74 firebird and going to put a 73 nose on it. I want to put in a newer chevy engine. I want 700hp, thinking T56 Viper 6 speed. I was thinking turbo. I want 25mpg when cruising.
I think the MPG can be accomplished.
What donor truck/car should I be looking at? I may even graft in the gauges and stuff. 5.3 or 6.0 liter?? Money is a slight concern.
It doesnt have to have a turbo to start but before I install the engine I would like to upgrade it so that its ready. Cam? valve springs? ARP bolts? Do I have to upgrade the rods and pistons?
VTEC? Cylinder drop off for mileage?
A little about me. Can MIG,TIG fab anything. Been working on cars for 30 years. Been into the Diesel seen for a while. Lost touch with the car performance side. I have my own auto repair business.
I'm open to ideas.
Thanks
Jon
I have bought a 6cyl 74 firebird and going to put a 73 nose on it. I want to put in a newer chevy engine. I want 700hp, thinking T56 Viper 6 speed. I was thinking turbo. I want 25mpg when cruising.
I think the MPG can be accomplished.
What donor truck/car should I be looking at? I may even graft in the gauges and stuff. 5.3 or 6.0 liter?? Money is a slight concern.
It doesnt have to have a turbo to start but before I install the engine I would like to upgrade it so that its ready. Cam? valve springs? ARP bolts? Do I have to upgrade the rods and pistons?
VTEC? Cylinder drop off for mileage?
A little about me. Can MIG,TIG fab anything. Been working on cars for 30 years. Been into the Diesel seen for a while. Lost touch with the car performance side. I have my own auto repair business.
I'm open to ideas.
Thanks
Jon
You are looking at the Viper box! stick trhe V10 infront of it.
Thread Starter
Registered User
Joined: Oct 2011
Posts: 4
Likes: 0
From: Deer Island, OR
I think with a turbo I could get close to the goals with a 5.3 liter.
What years would be the best and what upgrades would I need to consider.
Thanks for the replies.
Jon T
Staging Lane
Joined: Jan 2011
Posts: 51
Likes: 0
From: HoCo, Maryland
I'm new and have been reading a lot, just to much info to make a decision.
I have bought a 6cyl 74 firebird and going to put a 73 nose on it. I want to put in a newer chevy engine. I want 700hp, thinking T56 Viper 6 speed. I was thinking turbo. I want 25mpg when cruising.
I think the MPG can be accomplished.
What donor truck/car should I be looking at? I may even graft in the gauges and stuff. 5.3 or 6.0 liter?? Money is a slight concern.
It doesnt have to have a turbo to start but before I install the engine I would like to upgrade it so that its ready. Cam? valve springs? ARP bolts? Do I have to upgrade the rods and pistons?
VTEC? Cylinder drop off for mileage?
A little about me. Can MIG,TIG fab anything. Been working on cars for 30 years. Been into the Diesel seen for a while. Lost touch with the car performance side. I have my own auto repair business.
I'm open to ideas.
Thanks
Jon
I have bought a 6cyl 74 firebird and going to put a 73 nose on it. I want to put in a newer chevy engine. I want 700hp, thinking T56 Viper 6 speed. I was thinking turbo. I want 25mpg when cruising.
I think the MPG can be accomplished.
What donor truck/car should I be looking at? I may even graft in the gauges and stuff. 5.3 or 6.0 liter?? Money is a slight concern.
It doesnt have to have a turbo to start but before I install the engine I would like to upgrade it so that its ready. Cam? valve springs? ARP bolts? Do I have to upgrade the rods and pistons?
VTEC? Cylinder drop off for mileage?
A little about me. Can MIG,TIG fab anything. Been working on cars for 30 years. Been into the Diesel seen for a while. Lost touch with the car performance side. I have my own auto repair business.
I'm open to ideas.
Thanks
Jon
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go with a small motor (5.3, 5.7) and throw a twin turbo step setup on it. you might be able to wing that. the key to good gas mileage is all about efficiency, and it is in the heads. get the best small port, high velocity heads you can find (AFR 205/210) and get them massaged by Tony. that should get you there.
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Verdad Gallardo Thread Starter
Registered User
Joined: Oct 2011
Posts: 4
Likes: 0
From: Deer Island, OR
I have an 8000 pound truck that has over 1,000 ft pounds of torque at the back wheels and get over 20mpg. (j-sautorepair.com second page)
Doesnt the new Corvette get like 30mpg cruising?
I know if I use the power it will not get good mileage. But just cuising on the hwy with the right gearing it should be very easy to do. If I dont put the big spoiler on the back and maybe no hood scoop. Also I think the Trans Am fenders with the vents would help with air flow from under the hood. Keep it light. I was wondering if the cylinder cancellation could be programmed to work when it wasnt under boost.
trans_am7935, Why two turbos? Maybe one with the exhaust wrapped to keep the heat in??
Jon T
Doesnt the new Corvette get like 30mpg cruising?
I know if I use the power it will not get good mileage. But just cuising on the hwy with the right gearing it should be very easy to do. If I dont put the big spoiler on the back and maybe no hood scoop. Also I think the Trans Am fenders with the vents would help with air flow from under the hood. Keep it light. I was wondering if the cylinder cancellation could be programmed to work when it wasnt under boost.
trans_am7935, Why two turbos? Maybe one with the exhaust wrapped to keep the heat in??
Jon T
