Muscle Motors proudly presents our Street Killer Krate engine series. This is another bulletproof, ground pounding stroker Krate engine for the more budget minded enthusiast. These stock appearing 383/400/440 based strokers are 500”, pump gas animals that uses stock style heads and a hydraulic cam with  non adjustable valve train for low maintenance and cost. With 550 HP and over 600 Ft/lbs of torque, this stock appearing pump gas torque monster is at home in any Mopar!

We start with a 4340 crank and rods, KB forged pistons, Clevite 77 bearings, Akerly & Childs rings are balanced and measured to exacting tolerances to create a bulletproof rotating assembly just like we have 1000’s (literally) of times before. Just like all of our Performance engines the Street Krate receives a complete “race prepped” block. This ensures excellent performance and reliability for all applications. We start by magnafluxing and sonic checking all blocks to ensure and quality block.

Approximately 1 in 5 blocks are rejected as unacceptable and sold as scrap. All critical surfaces are machined to exacting tolerances and checked for QC (quality control). Cylinders are bored and honed w/deck plates, main bores are aligned honed with ARP main studs installed. Our oil system modifications are designed for increase oil delivery for maximum durability, and deck surfaces are milled parallel and square. All holes are bottom tapped and the all important cam bores are honed to proper size for perfect cam fit EVERY time!

At this point the prepared components are sent to the assemble department. Clearances are verified and the short block is then assembled. Ring gaps are filed and recorded and the cam is centerlined. Fel Pro gasket are use through out the entire motor and the short block is finished off with a 6 qt Hemi oil pan, windage tray, chrome timing cover and new vibration dampner.

For the top half we use Stealth heads. They are aluminum but look just like factory iron head castings. We use new rocker shafts and heavy duty Mopar Performance stamped rocker arms and pushrods. These heads will flow 275 CFM @ .550 lift and provide more than enough air to make 550+ HP AND 600+ ft lbs of torque! A dual plane Edelbrock Performer RPM intake provides awesome power yet is very drivable. This means you will have tons of power on tap and still be able to cruise as far as your heart desires.

We think we have a great combination for anyone wanting to maintain a “stock” appearance.  A motor that appears to be a 383/400/440 w/factory style aluminum heads is really a fire breathing, tire frying, 500”’pump gas animal that is ready to shut down any brand “X” or rice burner it comes across and still be driven to the Mopar Nationals. This complete ready to go engine from intake to oil pan is available for $7,599! We can also provide a carb to pan, distributor & wires, dyno tuned ready to drop in piece for an additional charge. See option list for details. 

Options:

Standard 440 port window A&A crossram  add $1000
Max Wedge linkage kit add $350
Dual carbs, spacers, carb studs, fuel fittings add $800
Solid cam upgrade (spring, cam, lifters, adjustable rockers, pushrods) add $625
Hydraulic roller upgrade add $900
Mopar Performance electronic distributor kit add $229
Mopar Performance plug wires add $59
MSD Distributor add $299
MSD wires add $89
Dyno, includes break in cam, oil change, optimize timing and jetting and dyno fuel add $700
Cast MM logo valve cover with breathers add $200
Quick Fuel carb, studs and fuel line add $649
Aluminum water pump and housing add $129
Pulleys & brackets available (call for application)