Eagle Rod Clearance question
Registered User
Joined: Jun 2000
Posts: 857
From: Washington, Michigan USA
The ARP 2000 rod bolts do not have a lower profile. They require the same amount of clearance work as a 8740 or L-19. I pressure check every block after any clearance work is done to show if a cut is made to deep and into a coolant passage. I do agree that compstars are of a lower profile and they do require less clearance work. However, Buck for buck, Eagle is cheaper to build, therefore prices can be dropped without sacrificing engine reliability.A Compstar crank and rods can be upgraded for about $600-$700. But like I said, I have never had a problem with Eagle. It takes careful precise cuts with attention to detail. Doing clearancing work with H-Beams and a stroker takes alot more time than I beams and a stroker. Either a 383 or 396.
This is my opinion about these parts. Other may agree or disagree.
This is my opinion about these parts. Other may agree or disagree.
6" h-beams WILL clear a standard base circle cam in a stroker application. I beams will not clear a standard base circle cam without clearance work on the rods. Eagle now provides this service free of charge to all of there I beam rods so they will clear a standard base cams.
I-Beam rods require less clearence then H-Beams at the crank end ......... but ...... the opposite is true for clearence of a standard base circle cam, at the cam end, (i.e. H-Beams provide more clearence then I-Beams here)??? 
Registered User
Joined: Sep 2006
Posts: 84
This is true. H beams will clear a standard base circle camshaft. The h beams have a more narrow profile around the large end of the rod, allowing more rod to cam clearance.
They are however, "more bulky" and require more block clearance work. This is the best that I can explain it. If you look at a set of I beams and h beams side by side, or build these types of engines you will know what I am talking about.
I beams require rod clearance work to clear a standard base circle cam. If you installed these rods, you either have a small base circle cam or your rods have been clearanced. Eagle does this to their I beams free of charge with their rotating assemblies.
Cook Performance Engines
They are however, "more bulky" and require more block clearance work. This is the best that I can explain it. If you look at a set of I beams and h beams side by side, or build these types of engines you will know what I am talking about.
I beams require rod clearance work to clear a standard base circle cam. If you installed these rods, you either have a small base circle cam or your rods have been clearanced. Eagle does this to their I beams free of charge with their rotating assemblies.
Cook Performance Engines
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