HELP! 383 rods not clearing block
#1
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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.
#2
youll have to notch the block to clear then youll be fine im building the same engine right now hope to have it fired up by nest 2 weeks if you have anyother question feel free to pm me
#6
FormerVendor
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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#8
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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.
#10
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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.
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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.
#14
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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
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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
#16
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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