548 efi bbc-730 hp
 

I am selling the 548 EFI motor I built two years ago. Motor available as drop in complete with accessories and exhaust or long block with EFI and intake components. Fuel and oil systems optionally available (currently not installed on motor). Motor has ~50 hours on it. Was never on dyno but speeds achieved in boat support HP estimates. The bad: Last run of last season, engine spun a rod bearing at sub 3000 rpm speeds and was immediately shut off (was actually during getting on plane for first time of day). Never lost oil pressure. I have invested over 21k in parts alone. Great deal for someone who is willing to fix a rod bearing to save ~50% of the cost of these components new.

Many photos available by request. Please send me a PM with your contact information for questions. All prices OBO. Not willing to split components unless all respective pieces spoken for with deposit.

Long Block with EFI: $11k
Long Block with Exhaust and Accessories: $13k
Fuel system: $400
Oil system: $400

Happy to crate and deliver to freight dock for shipping at buyer's expense.

Parts List for long block:
GMPP Gen VI Bowtie Block 4.530 bore
Ohio Crank 4340 forged 4.25" stroke crankshaft (internal balance)
Neutral balance flywheel
Engine Pro (Manley) 4340 H-beam rods with ARP 2000 bolts
Probe mini-dome pistons 4340 forged (10.2:1 CR) with Total Seal conventional AP ring pack (SS top ring, Napier 2nd, STD tension oil rings)
AFR 335 heads with cnc chambers and runners, equipped with AFR stainless intake and inconel exhaust valves, Isky Tool Room springs, Dart adjustable guideplates, Chrome moly retainers
ARP head bolts and rocker studs
Harland-Sharp endurance 1.7R roller rockers
Webber Industries stud girdles
Custom .120" wall hardened pushrods
Cam Motion (Morel) High RPM hydraulic roller lifters
Custom Marine Kinetics cam (.690" lift, full specs upon request)
Cometic MLS head gaskets
Edelbrock 454-R dominator-flange intake setup for MPI fuel injection and port matched to heads
Accel DFI 2100 CFM dominator-flange throttle body with 1" spacer
Holley HP ecu, harness, sensors, LS3 coil packs set up for C-N-P distributorless ignition
Holley 43 lb/hr fuel injectors
Mallory billet distributor hole plug/oil pump drive
8 qt. oil pan
Eddie Marine bypass crossover/thermostat housing
Billet oval arrestor/air cleaner
Merc starting/charging harness with plug
Starter
Teague Aluminum valve covers with Hardin Extreme breathers

Exhaust:
EMI Thunder manifolds with long SS risers with dual O2 sensor and single EGT port installed

Fuel System:
Aeromotive A1000 pump
Aeromotive EFI regulator
2"x10" fuel cooler

Oil system:
Teague 3"x18" oil cooler
210* oil thermostat
Dual parallel oil filter head
Dual oil temperature gauge senders/ports
Block adapter
All hoses/fittings are 1/2" NPT with 5/8" ID lines

Accessories:
Merc PS pump with cooler, Bravo sea pump, 100A Delco alternator, brackets and V-belt setup
Mercruiser engine mounts
Mercruiser bravo bellhousing
New bravo engine coupler

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I was looking at building something similar to this to put in my cat this winter I would be interested in the total package were are you located

I am located near Midland Michigan. PM sent with my contact info.

Bump

If you havent sold this by wintet and you start tearing it apart we should try your intake on the dyno!

I hope it isn't around that long! Haha. But I could be easily tempted if it is. You know I love a good science project. I need to get moving on that plenum shout design on that 500 intake.

Sunday Bump. Make me an offer.

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Bump. Make me an offer. Lets talk.

Pm me what's the price you will take for complete set up