ctchap70's 81 Z28

[Diefaster71]

Looking great, that is a sexy camaro. Love the shop to. One of these days my maro will have its very own home as well

[ctchap70]

Originally Posted by Diefaster71

Looking great, that is a sexy camaro. Love the shop to. One of these days my maro will have its very own home as well

Thanks for the compliments. Much appreciated. Nothing like the sexy curves of 2cd gen Camaros!

[ctchap70]

Getting ready to pull the engine. Pulled #1 plug out to roll engine over to TDC before pulling dizzy. Can't really tell in this pic but something connected with the #1 plug. Any ideas ya'll?

[ctchap70]

Stripping her down. Fixing to pull it. Got a hoist ordered. Should be here next week.

[ctchap70]

Don't know when or what but something went through engine.

[ctchap70]

What would a bad one look like? Ive never seen one I guess.




Decode of these say its a 400 head.

[FatnLow]

As for your lifter rounded out. It is supposed to be flat. I've had lifters that looked like that. I'm not a head guru but I believe those are the steam holes the little 1/8 holes between and close to the cylinder. I guess you know why the gap closed up. Been there also. Great progress man.

[ctchap70]

Originally Posted by FatnLow

As for your lifter rounded out. It is supposed to be flat. I've had lifters that looked like that. I'm not a head guru but I believe those are the steam holes the little 1/8 holes between and close to the cylinder. I guess you know why the gap closed up. Been there also. Great progress man.

You think the steam holes allowed extra heat to expand the ring which closed the gap and broke the piston?

[FatnLow]

I would know for sure. I'm no expert. I know what did it on my engine was detonation. I was running 10-1+ compression with the 305 4bl heads and I was always fighting detonation. I tried curve kits etc and no fix. Mine blew one night racing my cousin in his challenger 440. He told me later he got out of his when valves started floating. Needless to say the next morning I fired my car up and I heard a bang and metal and then it started missing. It bent the valves and needed a rebuild. From the picture the piece of piston probably closed up your gap.

[ctchap70]

Originally Posted by FatnLow

I would know for sure. I'm no expert. I know what did it on my engine was detonation. I was running 10-1+ compression with the 305 4bl heads and I was always fighting detonation. I tried curve kits etc and no fix. Mine blew one night racing my cousin in his challenger 440. He told me later he got out of his when valves started floating. Needless to say the next morning I fired my car up and I heard a bang and metal and then it started missing. It bent the valves and needed a rebuild. From the picture the piece of piston probably closed up your gap.

Yep no doubt piece of piston closed the plug gap. I was wondering if the steam holes helped heat up that area of the cylinder and cause ring gap to close and being the ring end gap was not set correct when the motor was built, the ring gap closed up and shoved upwards breaking piston. I hope I didn't make you dumber by reading that. Lol.

[ctchap70]

Wasn't packaged too nicely and had a few scuff marks but looks to be really solid. $239.00 from evilbay. Engine will be coming out shortly. I have decided to order a engine from ATK Performance Engines. Another member on here has one and he loves it. Here is a link to the engine I will be ordering.....
http://high-performance-engines.com/...ct_Co de=HP89

Heres a couple of pics of my new hoist.

[Lrader99]

Lifters should be slightly convex in nature. If you sit one on a glass table it should rock slightly.

Good Lifter on Left Bad on Right:


Again, good on left bad on right:


The lifters in the pics above have approx 90k on them and came from my 72 C10 350 Cheyenne last week.

[79zBlue]

good luck with the new engine hoist..looking to see what you think of it? that new motor looks sweet your gonna have fun

[ctchap70]

Originally Posted by 79zBlue

good luck with the new engine hoist..looking to see what you think of it? that new motor looks sweet your gonna have fun

I may have found out why it was a little cheaper than the rest. 1. The load leveler is a piece of crap. 2. The boom is not long enough to reach center of motor so I had to kinda drag the motor forward until it started coming up. Well it got the motor and tranny out but there's no way to put a engine in with it. It would be real easy to do if I had taken my nose piece off and bumper but I ain't ready to do that yet. I'll post pics later. Charlton

[FatnLow]

Since the front is so long you have to come from the side to pull the engine. I did the same as you from the front and just scratched my head. A search enlightened me to the side pull.