Flat Top 4.8 Pistons into my 5.3 HOW TO Video Here
#51
Its coming up with what you said now. Wow man, I'm glad you caught this. It could have been a headache down the road trying to figure out what was going on with a .5:1 difference in compression then I thought I had. I would have been over 11:1! That would be fine for my Camaro, but not in my Daily driver.
1st Block had the pistons but the cylinder bore had pitting in it.
2nd block didn't meet the specs for what I was building.
3rd block fit the bill.
There was actually another engine in between but it had spun bearings and I returned it right away.
I should have just bought new oversized pistons and used the first block. But I was stuck on the little details and didn't want to give up, so there went the budget part of it...
#52
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Should put you right were you want to be with out needing to mill. Maybe just a clean up pass.
I would CC before and after the intake valve change to see were you are at before having any milling done.
Ironically I started this well over a 2 years ago and wanted to do a max effort NA build and see if it could set a record for the fastest stock bore 5.3L. My partner got out of the performance scene. I have now turned it toward a more efficient performance engine build for my DD.
I would CC before and after the intake valve change to see were you are at before having any milling done.
Ironically I started this well over a 2 years ago and wanted to do a max effort NA build and see if it could set a record for the fastest stock bore 5.3L. My partner got out of the performance scene. I have now turned it toward a more efficient performance engine build for my DD.
That'll save me a couple bucks to not having to mill.

This gives me room to do a good polish in the combustion chambers also.
#53
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From: Huntsville, Alabama - SA, TX is home
LoL, just be glad you didn't have to go through 3 engines to get all the parts you needed.
1st Block had the pistons but the cylinder bore had pitting in it.
2nd block didn't meet the specs for what I was building.
3rd block fit the bill.
There was actually another engine in between but it had spun bearings and I returned it right away.
I should have just bought new oversized pistons and used the first block. But I was stuck on the little details and didn't want to give up, so there went the budget part of it...
1st Block had the pistons but the cylinder bore had pitting in it.
2nd block didn't meet the specs for what I was building.
3rd block fit the bill.
There was actually another engine in between but it had spun bearings and I returned it right away.
I should have just bought new oversized pistons and used the first block. But I was stuck on the little details and didn't want to give up, so there went the budget part of it...

#54

We are all here to learn! CC before and after the intake valve change. I would like to see if it affects the Chamber size going from a factory 1.89 to a factory 2.00 intake valve.
I just bought a stand and a CC kit so I can check my own. Like you said You just can't trust what's out there and I need to know for sure. Also I wanted to bring the compression down a little on my set up Since gas in CA is more expensive than anywhere else in the nation. That way if I have to, I can still run the cheap stuff safely.
#55
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From: Huntsville, Alabama - SA, TX is home
No problem. 
We are all here to learn! CC before and after the intake valve change. I would like to see if it affects the Chamber size going from a factory 1.89 to a factory 2.00 intake valve.
I just bought a stand and a CC kit so I can check my own. Like you said You just can't trust what's out there and I need to know for sure. Also I wanted to bring the compression down a little on my set up Since gas in CA is more expensive than anywhere else in the nation. That way if I have to, I can still run the cheap stuff safely.

We are all here to learn! CC before and after the intake valve change. I would like to see if it affects the Chamber size going from a factory 1.89 to a factory 2.00 intake valve.
I just bought a stand and a CC kit so I can check my own. Like you said You just can't trust what's out there and I need to know for sure. Also I wanted to bring the compression down a little on my set up Since gas in CA is more expensive than anywhere else in the nation. That way if I have to, I can still run the cheap stuff safely.

I will probably buy or make a nice stand one day. right now its make shift with would blocks. lol
#56
I will try my best to remember to do that. I usually dont put the valves back in after porting. I just take them to have the valve job done. I'll have to remember to stop myself. I can't measure before because i plan to smooth out the chamber.
I will probably buy or make a nice stand one day. right now its make shift with would blocks. lol
I will probably buy or make a nice stand one day. right now its make shift with would blocks. lol
#58
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From: Huntsville, Alabama - SA, TX is home
Slow progress. I've got two projects going at the same time. This motor going into my '87 Chevy Truck and a 6.0 turbo going into my '92 Camaro.
I got the Schoenfeld LS truck swap headers in and felt like I didn't want to use them bare and let them rust away. So I sand blasted them and coated them with Tech Line after I welded on the v-band flanges.
I've also almost finished porting the 862 heads. I just need to polish the combustion chambers now. Then I'll take them to get a valve job and cut for the LS1 2" intake valve, hopefully next week.
I hope to be swapping this motor and my Camaro motor at the same time in about 2 or 3 months. The Camaro is already LS swap'd but that project is over. It was called the "Squirter Project" and is now dead.
Here is my latest update video on all the projects.
AGH4L Garage Update - Project Status - YouTube
...
I got the Schoenfeld LS truck swap headers in and felt like I didn't want to use them bare and let them rust away. So I sand blasted them and coated them with Tech Line after I welded on the v-band flanges.
I've also almost finished porting the 862 heads. I just need to polish the combustion chambers now. Then I'll take them to get a valve job and cut for the LS1 2" intake valve, hopefully next week.
I hope to be swapping this motor and my Camaro motor at the same time in about 2 or 3 months. The Camaro is already LS swap'd but that project is over. It was called the "Squirter Project" and is now dead.
Here is my latest update video on all the projects.
AGH4L Garage Update - Project Status - YouTube
...
Last edited by AGearHead4Life; Apr 17, 2014 at 09:58 AM.
#59
I was wondering about this one so I thought I would ask.
Still hoping you get back to this one soon. I would like to see how it turns out. Especially since so many people ask about building a similar combo.
Still hoping you get back to this one soon. I would like to see how it turns out. Especially since so many people ask about building a similar combo.






