It's been a long time but I'm back with updates on this. I had the truck together and running pretty well. Something I overlooked in the cooling system stuck the thermostat on the way back from the beach here in NC and I blew a head gasket about 30 min from home. It limped home gamely and I parked it. A family friend who has a large shop on his farm invited me to do whatever work I needed to there so my problem of where to work has been solved.
I pulled the intake and this L05 has no hydraulic roller provisions whatsoever, so I ordered a .040 over 4 bolt main reman short block (880 'Vortec' block). The old engine was fitted with Fel-Pro 7733PT-2 .039" gaskets, heads look very fresh inside and out, almost no rust. The block is a 10054727. My guess is this is a low buck reman engine a PO had dropped in. I'll clean it up when it's out and see if I can find a VIN on it anywhere, out of curiosity. Right now I have 6 bolts to go before pulling it as a short block: 2 engine mount, top 2 trans bolts, 2 bolts for the oil cooler. My gut says keep the oil cooler and have the lines redone, rather than delete it or replace the lines with a pair of aftermarket ones. Opinions welcome on that. This truck will see some but not a lot of towing.
I'm reusing: knock sensor, OPSU and its stem, coolant temp sender in head, oil pan, timing cover, damper, flexplate.
New: timing set (12371043), LS7 lifters, 1.6 Summit stainless RRs, MH55 oil pump with welded pickup & new dist shaft.
Full list of other new parts I'll update later but includes Promaxx 2169 heads set up for HR cam, Comp 08-422-8 cam, Mahle 5746 head gaskets (Nitroseal, .026, 4.125) instead of the .015 shims I had planned on with the -12.3cc dished pistons in the old L05. New short block has -6.7cc slugs .025 in the hole.
Static CR I've calculated at 9.93:1 and DCR 8.16:1. Since I'm running the EBL Flash ECM I figure I can create a tune very conservative on timing for 87 octane if I really want to and another for 91 octane and maybe yet another slightly more aggressive if I want to run some 93 and milk a couple more degrees here and there.
I'll post some pics and add pics back to some earlier posts. What I need to focus on fairly soon is getting some feedback on the new VE tables I created a while back as well as get a timing table put together for first startup. I'll likely try using the 61pph injectors for first startup so as not to deal with rich issues trying to seat the rings. They should be able to deliver enough up at around 17-18psi to get to 4500RPM safely for engine braking segments of the ring seating.
Back within a couple days with what I have in EBL Flash. It's good to be back. :)
Originally Posted by Gojira94
It's been a long time but I'm back with updates on this. I had the truck together and running pretty well. Something I overlooked in the cooling system stuck the thermostat on the way back from the beach here in NC and I blew a head gasket about 30 min from home. It limped home gamely and I parked it. A family friend who has a large shop on his farm invited me to do whatever work I needed to there so my problem of where to work has been solved.
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