LS9 ( ZR1 engine ) in a C5 ?
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
It all boils down to how much money you have to put into the project.
Short List
I'm sure there is more....
Short List
- Hood clearance
- Pretty-much the complete drivetrain from engine to wheels
- Place for the oil tank
- New PCM and harness
- Fuel system from the tank forward, two stage pumps
I'm sure there is more....
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
NO! Only if you don't want broken parts all the time. 
It would be interesting if someone priced out what it would cost to duplicate the content of the LS9.
Sodium filled exhaust valves, titanium intake valves and connecting rods, forged crank, blower, dry sump oil system, etc....
It would also be interesting how far the LS9 could be pushed to produce more power..
It would be interesting if someone priced out what it would cost to duplicate the content of the LS9.
Sodium filled exhaust valves, titanium intake valves and connecting rods, forged crank, blower, dry sump oil system, etc....
It would also be interesting how far the LS9 could be pushed to produce more power..
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
Melting Slicks
Joined: Aug 2000
Posts: 2,618
Likes: 5
From: Overland Park KS
Mallett said the cast intake/supercharger exhibits a lot of heat soak. On the dyno their car tuned out a best of 552rwhp/537tq as the engine heated up the hp dropped into the 540s quickly.
To keep the car cool Mallett increases the volume of of the intercooler's fluid system by approx. 1 gallon nearly doubling the volume of the factory system. They also install a secondary intercooler radiator.
They hand port the intake/supercharger, the "v" between the impellers and the intercoolers get blended and smoothed. About 1/4" of casting flash on the back of the housing at the upper deck portion of the unit is modified.
They swap out the pulley on the supercharger with a unit that is installed with 3 bolts and is keyed. This allows them to tune the system and use different pulley sizes while retaining the stock size belt. The smaller pulley they use bumps the manifold pressure from the stock 11lbs to 16lbs. The stock pulley is pressed on and not keyed.
Mallett also uses a ZR1 specific Kook's Custom 1 7/8" headers with high flow cats, K&N filter on both packages.
The 757hp package includes a "racier" camshaft for the extra 50hp.