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  1. We just added our fully built 5.8L Shortblock to the website and for a limited time we are going to be offering a special sale price! I wanted to share here first since this is something most of you know I've been working on for a while. It took some time for the deals to go through but everything lined up and it's going to create some big time savings!

    JDM Engineering 5.8L 4V GT500 Built Aluminum Shortblock 1200HP

    Retail $11,999.00

    SALE PRICE: $9,999.00!!!! LIMITED TIME ONLY


    Call 732-780-0770 to order or for help.


    The JDM 5.8L built Shortblock is 1200 HP capable and comes backed with a 1 year no-detonation warranty. We focused on the weak links in the Trinity engine and improved those components so you can maximize all your power potential with out worry of a failure. With out a doubt the OEM connecting rods are a weak point, we've replaced those with a beefed up set of Manley 4340 H beams using ARP 2000 bolts. Next we focused on the bearings, as several stock 5.8L engines we disassembled had premature wear signs on the crank and main bearings due to tight clearances. We called upon Calico coating to help us pick out the best bearings and most durable coating they offer to limit friction and wear. The OEM oil pump and gears also get an upgrade. We use a 13-14 GT500 oil pump housing but we O-ring the pump to create a tighter seal to the block and install TSS billet gears inside the housing. We do offer one more option as an upgrade which is to have us install ARP timing guide pins. We've seen the stock pins shear on high HP racing applications like our Cobra Jet customers. For $299 it's a good piece of insurance if you plan to make big power or drag race the car.

    JDM Engineering 5.8L Shortblock includes:

    • NEW OEM Ford 5.8L aluminum engine block
    • Ford Performance Cobra Jet forged crankshaft
    • Custom Manley/JDM 5.8L 4340 forged connecting rods
    • ARP 2000 rod bolts
    • Mahle forged aluminum pistons stock compression 9.5:1
    • Mahle custom piston ring pack
    • Calico coated main and rod bearings
    • NEW OEM Ford 5.8L oil pump with billet gears
    • Professionally balanced and assembled
    • 1 Year no-detonation warranty


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