Hey thanks for response Dragncar! I was hoping for pics as I am trying to visualize the mod with my block at a local machine shop. My main and rod bearings were torqued into block and connecting rods by R+L in Dover to get "grind to" measurements for crank 3+ years ago when my wait for crank began. They have not been disassembled since. Just got crank. Would like to understand and correctly apply this mod to this build if I can, and any future as part of "my" normal engine build. I have 2 bent cranks, one with "lunched" rod journals among my parts collection. I also love the sound of a Poncho revving
Bearings are FMP-113-STD mains and C77-CB-743HN-020 rods. Both Calico CT-1 treated and cryo'd/massaged by Carter Cryo. I'm hoping there will be no surprises when I re-measure with my new bore gage set. Maybe I can still add your mod to mains as well. Do you mod rod brgs at all when you do this to mains-block? Was trying for a stout short block good for usable 6500RPM, possibly boosted eventually.
My short block parts to get there ...
Align honed, torque-plate honed, re-doweled with longer dowels I found on PZ, 72 400 block with stack height set for zero-deck @ 10.220 . SCAT forged crank, CAT 4340 H-beams/ARP 8740 cap screws, ARP main studs with cryo'd factory 2-bolt caps. Romac timing set and Pro SFI balancer. Moroso 7" pan setup, Oberg remote filter with oil cooler radiator(Chev p/u unit - extra oil with cooler).Not sure about windage tray and scraper setup ... leaning towards Butler choices.
My short-block mods to get there ...
Paul C disassembled and massaged M54F oil pump internals and thrust brg surface, I'm plumbing for direct oil entry at factory oil filter mount flange as well as engine compartment route. Could use some experienced input on this. Larger main cap dowels. Zero deck. Long rods (6.900) Lighter stronger pistons. All elements of r/a cryo'd. Was going to try polishing oil passages in crank with flexible polisher. Would like to implement your main brg mod. Was thinking of filling block as it is punched to 4.180 but would have to have it rehoned. It has sat 3+ years, if it needs to be rehoned it will be done by R+L and I might have them fill it to freeze plugs as well. Would have them massage bearings per your idea possibly as well if it needs to go back there. It is at a local shop to me right now. Any other input ideas I might complete before assy I'd be interested in ... believe in "continuous improvement" idea
. Short block may eventually see 600+HP.
I am still trying to figure out adding pictures to posts here. Last time I tried I got a computer virus from the the resizing-etc download. Would really like to get this down so I can use in other forums and computer activities. Have an I-phone 10 and am using various windows versions and browsers on several computers.