first of all, yes I am a n00b to engine building. that doesn't mean i haven't at least attempted to do a little research/learn some things before starting this process... anyway, i'm about 95% sure i have a bad valve seal (burning oil at a rate of about a quart every 500-800 miles give or take) and smoke is, well, noticeable when at WOT. so obviously it has a problem. it could be the rings, or so I was told, but the rebuild will take care of it, regardless. so i am planning on rebuilding and at this point in my engine building career i am most comfortable essentially refurbishing the engine using stock OEM parts. that said, here is what i'm planning to do... using PR4 OS 0.25 pistons (which will give me a slightly higher cr thus a minor boost in power, correct?) with appropriate rings from Honda. Here is the parts list I've come up with. am i missing anything? Pistons PR4 (OS 0.25) Piston Rings Piston Pins ARP Rod Bolts Valve cover gasket Oil pan gasket Oil Seal Oil Drain Plug Bolt Oil Drain Plug Washer Cylinder Head Gasket Cylinder Head Seal Camshaft Seal Valve Springs (Intake) Valve Springs (Exhaust) Valve Spring Retainers Valve Spring Cotter Valve Spring Seats Valve Stem Seals (Intake) Valve Stem Seals (Exhaust) Timing Belt Timing Belt Tensioner Tensioner Bolt Timing Belt Cover Grommet Oil Pump Oil Strainer Gasket Water Pump Spark Plugs Spark Plug Tube Seals Oil Filter 5 Quarts 0-30 Oil 5 Quarts Mobil 1 Synthetic 5W-30 Air Filter Freeze Plugs Compressor Belt Alternator Belt Power Steering Pump Belt Upper Main Bearing Lower Main Bearing Connect Rod Bearings Exhaust Manifold Gasket Intake Manifold Gasket Distributor Cap Distributor Cap Gasket Distributor Coupling Set Distributor O-Ring Fuel Injector Seal Ring Fuel Injector Cushion Ring Fuel Injector O-Ring obviously i'll be taking the block, cranks, etc to a machine shop and i will have several people helping me during the process who have rebuilt engines before (however none of them are honda guys they have all done vintage american cars) oh, and about the car: it's a 1990 acura integra LS completely stock. I bought it for $3k with 113k on it from the original owner with complete service records. it currently has 177k miles on it and this is the first major repair (read: honda's kick ass). anything else you need/want to know feel free to ask, flame, whatever. thanks!