I'll be starting my 489 build Thursday morning and wanted a place to document the process and also to hopefully have some advise from members (ahhmm ahhmm Wolf, Straub, Carl
) as I know I will get stuck on some of this.
I've built several engines over the years but until I started researching alot here, learned there were somethings I should have been doing and others that I was.
454 2 bolt main block-ARP main studs, ARP head studs, bored .030, torque plate honed, align honed, BHJ decked, cleaned, magged, etc.
Scat 4340 4.25 stroke crank, Scat H beam 6.385 rods and SRP -18.0 forged pistons, floating with Mahle file fit rings, Clevite H series bearings.
B&B (Stefs) 91488 oil pan and pickup, Romac balancer, Straub hydraulic roller 247/250 @.050 .631/.603 on 107, Morel 6403, AFR 290's, Air gap intake.
Block and rotating assembly just came back last night from machine shop. I washed the block and crank with soapy water, blew all the passages out, wiped down as much as I could with paper towels, then sprayed it all down with WD40 and wrapped in plastic.
At the machine shop they balanced the rotating assembly and mocked up the assembly. Rod clearance is .026-.027 and mains are .003 as of now. Here is what the shop recommended for the rest:
Torque rods to 62lbs (ARP bolts)
Torque main studs to 110 lbs (ARP)
Crank end play Min .005 and max of .012
Min rod bolt clearance to pan rail and inside block .050
Torque head studs to 70 lbs (they recommended silicone for threads into heads and gave me their assembly lube for the bolt/washer/nut on studs)
Bolt heads on with no gaskets, slowly turn over to see if any interference on piston dome and chamber
Install cam, degree and clay pistons-min .100 valve to piston clearance
Check coil bind on heads-min .050
Oil ring rails min .015
Top ring file to .019
2nd ring file to .021
So engine guru's.....Does this look right so far?