A tale of something cool and a shop that pwnd ZZP
Senior Member
Joined: 06-10-08
Posts: 642
Likes: 1
From: Michigan
An issue with the shop we used to deck the block with a ultra fine finish.
Welcome to Facebook
thoughts?
At ZZP we couldn't get past 700 engine HP on the block. So we changed the block design using some technology from one of our guys experienced in high HP Honda racing. GMR tried a similar approach but they messed on in part of the process causing the cylinders to distort. ZZP has engineered around this and we should be shipping 1000 HP capable blocks this spring.
A block we tested to failure. Sleeve let go, cut in half we found an internal crack as well. Also shown is a new ZZP block ready to go where no Ecotec's on this forum have gone before
Welcome to Facebook
thoughts?
At ZZP we couldn't get past 700 engine HP on the block. So we changed the block design using some technology from one of our guys experienced in high HP Honda racing. GMR tried a similar approach but they messed on in part of the process causing the cylinders to distort. ZZP has engineered around this and we should be shipping 1000 HP capable blocks this spring.
A block we tested to failure. Sleeve let go, cut in half we found an internal crack as well. Also shown is a new ZZP block ready to go where no Ecotec's on this forum have gone before
Senior Member
Joined: 11-10-05
Posts: 13,359
Likes: 5
From: TX
nice but how many people are running into problems where 700hp is breaking the block and they need a 1000hp capable one? id like to shake that mfs hand to dd a 700hp fwd balt. i can understand for you guys since youre a shop and play around with stuff that makes that kinda power.
Did you do the Liquid Aluminum filling method?? WRITE-UP DIY BLOCK FILLING
We did this once on a Honda block but weren't pressing it over 700whp. It held 582 just fine tho with that method and Rods/Pistons/Bearing swapped. Pretty inexpensive motor build really!
Interested in the details tho
We did this once on a Honda block but weren't pressing it over 700whp. It held 582 just fine tho with that method and Rods/Pistons/Bearing swapped. Pretty inexpensive motor build really!
Interested in the details tho
Did you do the Liquid Aluminum filling method?? WRITE-UP DIY BLOCK FILLING
We did this once on a Honda block but weren't pressing it over 700whp. It held 582 just fine tho with that method and Rods/Pistons/Bearing swapped. Pretty inexpensive motor build really!
Interested in the details tho
We did this once on a Honda block but weren't pressing it over 700whp. It held 582 just fine tho with that method and Rods/Pistons/Bearing swapped. Pretty inexpensive motor build really!
Interested in the details tho
New Member
Joined: 08-24-10
Posts: 4
Likes: 0
From: Alberta
Foam cast is porous, its known to crack in high boost and extreme heat applications plus it's way cheaper to fab the foam cast when compared to a sand/glass cast product.
As for a sand/glass cast product, it is not as porous and it will last much longer. Plus it's known, not to crack as easily than a foam cast product but it cost much higher.
As for a sand/glass cast product, it is not as porous and it will last much longer. Plus it's known, not to crack as easily than a foam cast product but it cost much higher.
I think you are confusing the term 'sand casting' with 'green sand' casting.
With that said, GM uses lost foam casting over green sand casting, because it produces a more uniform (and therefore stronger) part, with tighter tolerances and a better surface finish.
Hopefully that debunks some of the myths surrounding process used to make the Ecotec block.
Senior Member
Joined: 10-05-10
Posts: 805
Likes: 1
From: A.B.E. PA & Jacksonville FL
FYI, lost foam casting IS a type of sand casting.
I think you are confusing the term 'sand casting' with 'green sand' casting.
With that said, GM uses lost foam casting over green sand casting, because it produces a more uniform (and therefore stronger) part, with tighter tolerances and a better surface finish.
Hopefully that debunks some of the myths surrounding process used to make the Ecotec block.
I think you are confusing the term 'sand casting' with 'green sand' casting.
With that said, GM uses lost foam casting over green sand casting, because it produces a more uniform (and therefore stronger) part, with tighter tolerances and a better surface finish.
Hopefully that debunks some of the myths surrounding process used to make the Ecotec block.
Here's the link to ZZP LNF/LSJ Block
Last edited by gone_in_10_sec; Jan 27, 2011 at 12:48 PM.
The link to ZZP is for their crate engines and does not detail or show prices for the additional block fill.
How much extra is this process, or will it be included in the regular engine?
How much extra is this process, or will it be included in the regular engine?
Yup your right, I did forget to mention there both the same process. Thanks for looking out..
Here's the link to ZZP LNF/LSJ Block
Here's the link to ZZP LNF/LSJ Block
Former Vendor
Joined: 06-03-08
Posts: 4,169
Likes: 8
From: Grand Rapids, MI
Here's a pic of a supposed "pourus block." In the middle of the pic you can see a crack in an area that should not be stressed from horsepower. Where the arrows are, the crack goes all the way through the wall.
Senior Member
Joined: 10-05-10
Posts: 805
Likes: 1
From: A.B.E. PA & Jacksonville FL
Thank you, thank god i didn't go with foam cast. Sand casting a little more money but at least I don't have to worry about any parts I produce not cracking.
Senior Member
Joined: 10-05-10
Posts: 805
Likes: 1
From: A.B.E. PA & Jacksonville FL
Did you do the Liquid Aluminum filling method?? WRITE-UP DIY BLOCK FILLING
We did this once on a Honda block but weren't pressing it over 700whp. It held 582 just fine tho with that method and Rods/Pistons/Bearing swapped. Pretty inexpensive motor build really!
Interested in the details tho
We did this once on a Honda block but weren't pressing it over 700whp. It held 582 just fine tho with that method and Rods/Pistons/Bearing swapped. Pretty inexpensive motor build really!
Interested in the details tho
