What do you want to do with your 302? Coast High Performance brings you the 347ci Street Fighter small-block for classic and late-model Mustangs. It screams with fuel injection and sizzles nicely with a carburetor. So check your excuses at the door. It's time to increase displacement for about the same money it costs to do a standard rebuild on an engine.
The 347 Street Fighter employs an offset-ground iron or steel crankshaft, brute-strength Blue Thunder connecting rods, Probe custom pistons, and a host of options designed to make the most of your build. If you want H-beam Probe connecting rods that can withstand a 7,000-8,000-rpm spin, then Coast can accommodate you. Billet crank? No sweat. Trick Flow or Edelbrock heads? Sure. For those of you in the vintage crowd, if you're seeking a stock facade, then opt for 351W heads and an Edelbrock Performer intake manifold (paint it engine color!). Our message here is flexibility. You can build a higher displacement small-block without stepping up to a 351W block.
The block is bored 0.030 inch...
The block is bored 0.030 inch oversize. Most builds include a new block.
In standard form, the 347...
In standard form, the 347 Street Fighter consists of a nodular-iron crankshaft (3.400-inch stroke), Blue Thunder 5.400-inch-long connecting rods, Probe 4.030-inch hypereutectic pistons, Clevite bearings, plasma-moly piston rings and a high-volume oil pump.
Coast gets the stroke by offset-grinding...
Coast gets the stroke by offset-grinding the crankshaft 0.060 inch.
Coast pumps displacement up...
Coast pumps displacement up to 347 ci by including a unique custom piston that makes the 347 Street Fighter a more reliable engine than other available 347ci strokers. This design keeps the oil ring out of the wristpin hole, which eliminates oil-control problems.
H-beam connecting rods are...
H-beam connecting rods are nice options if you intend to go racing or ring it tight on the street.
Even if you're stroking an...
Even if you're stroking an older 289 or 302, we suggest stepping up to a roller tappet camshaft in your 347. A more aggressive cam profile helps your engine digest more air and more fuel, which improves torque.
Coast High Performance uses...
Coast High Performance uses high-volume oil pumps in all its Street Fighter engines. Volume-not always higher pressure-keeps things lubricated under demanding conditions. Remember that the rule of thumb with oil pressure is 10 psi for every 1,000 rpm. If you expect to tach your 347 to 6,000 rpm, then you're going to need at least 60 psi of oil pressure at that speed.
The optional main-cap girdle...
The optional main-cap girdle stiffens the block for high rpm use. Think of the stud girdle as you would the 427ci cross-bolt design: It stiffens the main caps.