HELP! 383 rods not clearing block
Thread Starter
Teching In
Joined: Mar 2006
Posts: 49
Likes: 1
From: Northwest Indiana
HELP! 383 rods not clearing block I am building a 383 out of a 98 ls1 car. When I installed the #7 and #8 pistons/rods and rotated the crank it would only rotate about half way in either direction. The bolt heads on the eagle H-Beam rods are hiting the block at the bottom of the cylinder. Is this a common issue with the ls1's. Can I get the block machined to work safely or is this eagle kit not going to work.
FormerVendor
Joined: Nov 2001
Posts: 3,065
Likes: 6
From: Houston, Tx.
I am building a 383 out of a 98 ls1 car. When I installed the #7 and #8 pistons/rods and rotated the crank it would only rotate about half way in either direction. The bolt heads on the eagle H-Beam rods are hiting the block at the bottom of the cylinder. Is this a common issue with the ls1's. Can I get the block machined to work safely or is this eagle kit not going to work.
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Thread Starter
Teching In
Joined: Mar 2006
Posts: 49
Likes: 1
From: Northwest Indiana
Thanks for your help but Im a little weary about notching the block so I'll most likely have my machinist do it for now because this is my first real build on my own. also did any of you have to cut into the steel cylinder sleeve to clear the rods.
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It was probably hitting the windage tray. If you use ARP main studs they include spacers to drop it down a bit, and it gives you the clearance you need. I did that on my 383 and had no issues.
yup it was hitting the tray as well. put in the spacers and now that parts gravy. i just have to pull the pan back off again and clearance a bit more.
Rising this thread from the dead.
How much clearance is needed between the rod/rod bolt and block?
Im building an L92 427 and I know im going to have to clearance it a bit.
Thanks.
How much clearance is needed between the rod/rod bolt and block?
Im building an L92 427 and I know im going to have to clearance it a bit.
Thanks.
What clearancing? It's as common as the nose on your face. Amateurs who think they can just buy parts and slap an engine together panic because they dont know what to expect. This is why we have engine buiders. They have experience and they know how to do it right. Guys want to cheap out and save labor charges so they get a subpar build. But they saved that 500 on assembly charges... LOL
I've have customer's who are SBC "experts " who defer the build to us. It's not just like build a plastic model..LOL
Here this might help a little bit, page 2 and 3 show how to clearance them.
http://www.gmhightechperformance.com...l_gallery.html
http://www.gmhightechperformance.com...l_gallery.html
TECH Regular
Joined: Sep 2005
Posts: 453
Likes: 0
From: 415 Northern CA
What clearancing? It's as common as the nose on your face. Amateurs who think they can just buy parts and slap an engine together panic because they dont know what to expect. This is why we have engine buiders. They have experience and they know how to do it right. Guys want to cheap out and save labor charges so they get a subpar build. But they saved that 500 on assembly charges... LOL
I've have customer's who are SBC "experts " who defer the build to us. It's not just like build a plastic model..LOL
I've have customer's who are SBC "experts " who defer the build to us. It's not just like build a plastic model..LOL
