My engine build
Thread Starter
Melting Slicks
Joined: Jul 2005
Posts: 2,586
Likes: 2
From: Bardstown Kentucky
My engine build
I just need a little direction on my engine build. Here is my idea... please critique 
3.905 Bore
3.622 Stock Stroke
6.125 Rod Length
Rods- Eagle with ARP2000 bolts
Pistons- Mahle -9cc dish Forged
Crank- Stock LS6 crank
Cam- ECS Blower Custom Cam
Timing Chain- Double Roller from ECS as well
Heads- 243 cast Stage 5 heads- 66CC
**The heads will have to be milled .005 which should take them to 65cc
LS6 Intake
P&P throttle body
Induction/Power Adder- Vortech S Trim
I need opinions on the Mahle Piston versus the Diamond. Thanks guys!
3.905 Bore
3.622 Stock Stroke
6.125 Rod Length
Rods- Eagle with ARP2000 bolts
Pistons- Mahle -9cc dish Forged
Crank- Stock LS6 crank
Cam- ECS Blower Custom Cam
Timing Chain- Double Roller from ECS as well
Heads- 243 cast Stage 5 heads- 66CC
**The heads will have to be milled .005 which should take them to 65cc
LS6 Intake
P&P throttle body
Induction/Power Adder- Vortech S Trim
I need opinions on the Mahle Piston versus the Diamond. Thanks guys!
Team Owner
Joined: Apr 2001
Posts: 26,794
Likes: 614
From: Elmhurst, IL (West Suburb of Chicago) & Home of MEGA Horsepower
St. Jude Donor '06
Between those choice I would vote MAHLE also and JE and WISECO also make excellent forged LSX pistons. Also, I am not implying that the DIAMONDS are junk but they are not the top of the line piston and are more of a budget buy that works well for most LSX f/i applications).
Safety Car
Joined: May 2002
Posts: 3,615
Likes: 2
From: waterloo ontario
St. Jude Donor '08
If the Mahles are 4032 i would throw them in the garbage-get the Diamonds. One small lean out and you'll be eating rings. I don't have any idea why anyone would want a 4032 piston versus a 2618.
Former Vendor
Joined: Feb 2004
Posts: 10,876
Likes: 8
From: Las Vegas NV
St. Jude Donor '06 & '12
Also, isnt the 2618 "Preferred" for boosted/NOS applications??
Originally Posted by eb02z06
If the Mahles are 4032 i would throw them in the garbage-get the Diamonds. One small lean out and you'll be eating rings. I don't have any idea why anyone would want a 4032 piston versus a 2618.
Thread Starter
Melting Slicks
Joined: Jul 2005
Posts: 2,586
Likes: 2
From: Bardstown Kentucky
It was stated that the diamonds are a budget piston but they are more expensive than the mahles. You guys have me very confused now
I can get the mahles much cheaper and they include rings and wrist pins. I guess my main question was do you all think that is a well rounded setup? Does it seem to be a good combo?
I can get the mahles much cheaper and they include rings and wrist pins. I guess my main question was do you all think that is a well rounded setup? Does it seem to be a good combo?
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
Le Mans Master
Joined: Oct 2001
Posts: 5,577
Likes: 3
From: Southern Maryland Maryland
I've always used diamond pistons in every build and have always been happy with them until the last set. The pistons had a significant weight variance between the heaviest and lightest but they switched them out without any question. They are in my 346 that has already gone 145mph on a soft tuneup and a weak bottle. When I build my big iron motor thats should make 1400hp or so I am going to use Diamond again.
Pro
Joined: Feb 2006
Posts: 616
Likes: 0
From: Vancleave Ms.
Originally Posted by Phil97SVT
When I build my big iron motor thats should make 1400hp or so I am going to use Diamond again.
James
Le Mans Master
Joined: Oct 2003
Posts: 8,863
Likes: 86
From: PA
St. Jude Donor '08
Originally Posted by 95BlueBomber
I just need a little direction on my engine build. Here is my idea... please critique
3.905 Bore
3.622 Stock Stroke
6.125 Rod Length
Rods- Eagle with ARP2000 bolts
Pistons- Mahle -9cc dish Forged
Crank- Stock LS6 crank
Cam- ECS Blower Custom Cam
Timing Chain- Double Roller from ECS as well
Heads- 243 cast Stage 5 heads- 66CC
**The heads will have to be milled .005 which should take them to 65cc
LS6 Intake
P&P throttle body
Induction/Power Adder- Vortech S Trim
I need opinions on the Mahle Piston versus the Diamond. Thanks guys!
3.905 Bore
3.622 Stock Stroke
6.125 Rod Length
Rods- Eagle with ARP2000 bolts
Pistons- Mahle -9cc dish Forged
Crank- Stock LS6 crank
Cam- ECS Blower Custom Cam
Timing Chain- Double Roller from ECS as well
Heads- 243 cast Stage 5 heads- 66CC
**The heads will have to be milled .005 which should take them to 65cc
LS6 Intake
P&P throttle body
Induction/Power Adder- Vortech S Trim
I need opinions on the Mahle Piston versus the Diamond. Thanks guys!
SOUNDS GOOD.....
iam holding out for this.....................
Heel & Toe
Joined: Nov 2006
Posts: 22
Likes: 0
Originally Posted by 95BlueBomber
I just need a little direction on my engine build. Here is my idea... please critique
3.905 Bore
3.622 Stock Stroke
6.125 Rod Length
Rods- Eagle with ARP2000 bolts
Pistons- Mahle -9cc dish Forged
Crank- Stock LS6 crank
Cam- ECS Blower Custom Cam
Timing Chain- Double Roller from ECS as well
Heads- 243 cast Stage 5 heads- 66CC
**The heads will have to be milled .005 which should take them to 65cc
LS6 Intake
P&P throttle body
Induction/Power Adder- Vortech S Trim
3.905 Bore
3.622 Stock Stroke
6.125 Rod Length
Rods- Eagle with ARP2000 bolts
Pistons- Mahle -9cc dish Forged
Crank- Stock LS6 crank
Cam- ECS Blower Custom Cam
Timing Chain- Double Roller from ECS as well
Heads- 243 cast Stage 5 heads- 66CC
**The heads will have to be milled .005 which should take them to 65cc
LS6 Intake
P&P throttle body
Induction/Power Adder- Vortech S Trim
Life Time NCM #2196
Joined: Sep 2004
Posts: 82,573
Likes: 1,684
From: Converse TX
Originally Posted by DJDL
I'd rather see wiseco pistons, callies ls1 rods (light rods) and patriot LS6 stgII heads or AFR 205's if you want to get the good ****
Safety Car
Joined: May 2002
Posts: 3,615
Likes: 2
From: waterloo ontario
St. Jude Donor '08
Everyhting looks good EXCEPT the Mahles-pistons and rings together for a good price doesn't mean a good thing. Just stay away from the 4032 stuff and by no means are the Diamonds budget. Wiseco, Diamond, Ross are among the best stuff-if you WANTED the best you could get a set of CP pistons.