Selling my nearly complete accessorized big block engine and matching TH 350 transmission as I sold my 71 Camaro rolling and no longer have a car to put this in. This engine is built to have a large torque curve perfect for trucks and heavy cars and with 9.5:1 cpr it should make an honest 450 hp at approx. 5,000 rpm and about 550 ft lbs of torque at approx. 3,600 rpm. Torque should be above 500 ft lbs from 2,800 rpm to 4,600 rpm. I routinely work on 3,000 hp blown alcohol engines and own a pro mod so I have a pretty decent idea and these numbers were pulled from a very similar dyno proven combo. With ARP studs, hollow doweled main caps, and ARP rod bolts this engine will hold 700 hp easy. Specs are as follows:
Block: 461 cubic inch Big Block Chevrolet 2 bolt main block, just bored .030 over, has some very minor pitting in 1 or 2 cylinders, I would not hesitate to run it this way as I could have bored it .040 and did not feel it was needed.
Crank: GM cast crank
Rods: Gm stock rods
Pistons: No pistons included so you can put the compression at whatever you want, I would suggest 9.5:1 for premium pump gas w/ these heads and that can be done with light flat tops and a .027" Cometic gasket. Cast pistons will hold up to the motor as is for the street use.
Bearings: Clevite 1,000 miles on main and rods, cam bearing are new
Rings: No rings included so you can pick your pistons
Cam: Comp cams magnum 270h hydraulic cam and lifter kit, 224 @ .050 .510" 1,000 miles
Timing chain: GM double roller 1,000 miles
Timing cover: Chrome, new w/ seal and gasket
Oil pan: GM truck pan (adds an extra quart) and new steel core 1 pc gasket
Head gaskets: None included so you can adjust your compression ratio
Heads: Purchased from a former super stock racer. Oval port w/ approx. 98 cc chambers, Intakes have been gasket matched and tapered into the runners, Bowls have been blended, chambers have been polished and have had some unshrouding work done, Larger Ferrea 2.19/1.88 or 1.77 (Can't remember) stainless valves installed 1,000 miles, just did a fresh 3 angle valve job, Comp cams springs installed 1,000 miles, New seals
Pushrods: Moly pushrods (do not remember brand)
Rocker arms: Isky big blue aluminum roller rockers
Valve covers: Chrome Moroso covers w/ gaskets and breather (some plating peeled off around the flange but its not terrible)
Intake: Bought with the heads from the ex super stocker guy. Old (better) style Edelbrock Torker 2-O with the twisted carb flange, these are the best performing single plane low profile intakes you can get and should fit under any hood. This one has been gasket matched to the heads and includes the new matching gaskets, there has also been some polishing done in the runners. New ARP 12 point bolts
Carb: Edelbrock 750 cfm, carb spacer included. Just rebuilt
Distributor: MSD pro billet w/ vacuum advance
Points box: MSD 6AL rev limiting
Spark plugs: None included so you can match your compression ratio with the proper heat range
Accessories: GM starter, water pump, and alternator all with 1,000 miles, Chrome alternator bracket, Chrome thermostat housing and 165 degree thermostat 1,000 miles, radiator hoses for GM 1,000 miles, Chrome throttle return spring mount, throttle return spring, GM water temp sensor, vacuum hoses, dipstick, pulleys, serpentine and v belt. All gaskets and seals except head gaskets and valley gaskets.
All machine work performed by Scotty's racing technologies in Spring Hill who does all of my blown alcohol hemi work so it's quality work. I just put $375 in machine work into the motor to make sure it's ready to go and about $100 into gaskets, fasteners, and the carb rebuild kit. This combo with 11:1 compression, a solid cam, and 850 cfm dbl pumper went 10.90s in a decent 75 Camaro before I bought the heads and intake from him and got his combination.
Transmission: TH-350 Long tail, It has a B&M stg 2 shift kit, Lightened Sun gear, B&M heavy duty clutch drum with the extra disc and good frictions and steels, I also performed some cooling mods to the drums. There is a drain pan plug installed as well and a chrome dipstick. This transmission was professionally assembled and performed flawlessly with the stock converter, I am throwing in another converter which I was told is 4500 stall but I cannot verify, for the street I would put a 2200-2400 stall unit in it but the stocker worked fine in my car w/ 3.73 gears.
Parts can be inspected and are sold as is for $3,800, no low ballers please as I am not in a hurry to sell this thing. Please feel free to call with any questions Thanks.