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Thread: Tonys Z rebuild thread
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03-06-2019, 09:49 PM #1
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Tonys Z rebuild thread
Well...........I have a new project. A buddy of mine brought his car to me a few weeks ago, after hearing a loud bang from the engine. After pulling the 383 out, tearing it down, I found #3 rod had broken. Amazingly, the block hadnt sustained any major damage. Besides the #3 intake valve slightly bent, no damage to the AFR 195s. Currently the block, heads and internals are at my machinist being prepped for a rebuild.
Current setup
95Z28
2 bolt block
Scat 9000 3.75
Scat 6 rods
Icon forged .040 over
Comp Cams XFI280
AFR 195 1039 heads comp ported
Edelbrock LT4 red intake manifold
58mm TB
24x Torqhead swap
Pacesetter LTs 3 magnaflow exhaust
T56 3.73 out back
Last Dyno put down 414rwhp 397rwtq
After building the bottom end a little stronger, Ill be making slight mods to up the power. Ill keep you guys updated.Last edited by Sergiodpk; 03-06-2019 at 09:57 PM.
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The Following 4 Users Say Thank You to Sergiodpk For This Post:
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03-09-2019, 03:28 PM #2
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Finished some clean up porting on the Edelbrock manifold
Casting isnt that great from the factory....in my opinion
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The Following User Says Thank You to Sergiodpk For This Post:
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03-12-2019, 11:06 PM #3
"The Rock"
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Moving right along man. I love a post with pics!
LTXtech.com is my drug...
Our BIG MOMENT @ the 2012 LTXshootout
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1996 Camaro Z28: RIP 09/25/2016
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03-15-2019, 10:17 AM #4
>$25K Build Club Ambassador
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Looking good! Planning on doing any other porting work? Head work?
I'm excited about these future mod plans.'97 Z28...Sleeper
648 RWHP 585 TQ - Speed INC Tuned! 383, F1A, blah blah
Current Project: 1927 Model T Roadster - LTX/M6 Powerplant!
Build Thread: http://ltxtech.com/forums/showthread...oadster-Build!
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03-22-2019, 09:30 PM #5
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All parts are back from the machine shop ready for assembly
Budget is tight so wont be making dramatic upgrades
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03-24-2019, 06:33 PM #6
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Short block assembly
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05-09-2019, 12:11 PM #7
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Finally got some free time to get it back together
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05-15-2019, 11:55 AM #8
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Any idea what caused the rod to break? Material failure?
Nice looking engine BTW.1996 Z28 SS M6 Polo Green Metallic - Built 355 from my 93
1996 Z28 SS M6 Arctic White - Stock
1993 Z28 Medium Patriot Red - 355 LT1 with M6 and 24x Conversion (RIP in peace)
2007 Corvette Z06 Black - Stock
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05-18-2019, 07:29 PM #9
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Combination of things
-cheap rods not rated for the amount of power output
-uneven cylinder boring from previous machinist
-Detonation cuz small cam=high dynamic compression combined with aggressive timing running crap Cali 91 octane
-also the exhaust was built really bad...the Y necks down to 2 1/2 engine struggling to breath
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05-31-2019, 08:16 PM #10
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All done....ready for break in
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