On the first full pull, it was apparent that this engine had broad torque and power curves, making over 600 lb-ft of torque and well over 700 horsepower. For an ignition system, MRL chose a Mallory 32 series distributor combined with a Mallory Hyfire6 ignition box, an E-Core coil, Accel 9000 plug wires, and Accel silver tip spark plugs.On the dyno, this 470-inch big-block fired right up with no issues, sounding crisp and responsive. Mike says that since the Victor intake runners are actually smaller than the ports in the heads, the engine will run more efficiently since this port mismatch will help keep reversion pulses away from the carburetor and plenum area of the intake. To beef up the bottom end, Mike chose a set of BCR aluminum main caps, and a main girdle from Chenoweth Speed and Machine. To help you get a headstart on what's available, we list all our different 3.750 x 6.760 (440 stroke and rod) but because the block is 3/4”shorter, the piston is 3/4” shorter and literally half the weight. MRL states that Mahle pistons are excellent in terms of weight and strength, come with a metric ring pack, and are fully coated. The engine in a pulling truck doesn't just need power and torque, but it also needs to be able to withstand high rpm and heavy loading for a sustained period of time. Subsequent tuning netted a peak horsepower number of 731 and peak torque of 625 lb-ft. Torque was over 600 lb-ft from 4,700 rpm all the way past 6,200 rpm, and horsepower was over 700 from 6,000 rpm well past 7,000 rpm.
Mopar B, RB, and second-generation Hemi cam journals are known for misalignment and size problems, so MRL corrected these issues and installed Durabond coated cam bearings. Of course the entire assembly was balanced and the cylinders were treated to Total Seal dry film lube to aid in ring seating during engine break-in.Since the class requirements dictated a cast-iron cylinder head, Mike had to decide whether to use factory castings, or go with an aftermarket head.

This carb and intake combination will give smooth acceleration, with improved intake charge velocity to aid in top end power. This is a powerful combination, and will certainly be a fun ride at truck pulling events. Stroker motors for street and race cars. Due to stroker kit orders being a bit more complex than the average order, World Mega Block Callie’s Crank Oliver Rods CA625 Rod Bolts... Posted 7 days ago $18,000.
This block was treated to our state of the art block prep and machining process. The intake runners were ported to increase the runner width from the port, all the way to the plenum area of the intake. The port volumes and flow numbers of the 440-C heads match up nicely to the 470 inch big-block, and since the truck this engine is going in isn't set up to handle the added power that ported heads would produce, using the heads as-is will allow room to grow as the truck's owner upgrades the transmission and suspension components.There are many options available from timing chain and gear sets, to gear drives, and even belt drives. We build custom Mopar big block crate engines based on Chrysler 440, 400 and 383 engines.

572 Big Block Mopar . we don't offer our stroker kits though our automated web store. The main bearing oil feeds from the main oil galley were enlarged to ensure plenty of oil gets to the crankshaft and rods, and a custom crankshaft scraper was installed to reduce windage.An Edelbrock Victor single-plane aluminum intake manifold is used -- which MRL states will give the intake charge a lot of velocity for a broad power curve.


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