RPG Max Effort N/A 5.5L Short Block

RPG Max Effort N/A 5.5L Short Block

$9,500.00
$9,500.00
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  • Rated and reviewed

We are proud to introduce the RPG Max Effort Naturally Aspirated Short Block, designed for builders chasing the limits of N/A power. Capable of producing 700+ rear-wheel horsepower with the right cylinder head, camshaft, and intake combination, this short block represents the pinnacle of high-compression, all-motor Coyote performance.

Built around the Ford Performance Gen 3 5.2L block and assembled with premium forged internals, this Max Effort package is precision-balanced, blueprinted, and assembled to deliver exceptional power, throttle response, and reliability.

Short Block Specifications

  • Block: New Ford Performance Gen 3 5.2L aluminum block

  • Crankshaft: Callies Compstar forged crankshaft – 3.900″ stroke

  • Pistons: RPG Custom forged pistons – 3.700″ bore, 14:1 compression ratio

  • Connecting Rods: Manley or Oliver custom lightweight I-beam rods with ARP 2000 hardware

  • Piston Rings: Total Seal ring set

  • Bearings: Clevite coated main and rod bearings

  • Hardware: ARP main studs and side bolts

  • Assembly: Fully balanced and blueprinted to Max Effort N/A specifications

  • Horsepower Capability: 700+ RWHP naturally aspirated

  • Build Time: 7–8 weeks estimated

Shipping Information

  • Flat freight charge of $250.00 within the 48 contiguous United States

  • Residential or liftgate delivery: additional $85.00

  • Freight billed upon completion and ready-to-ship notification

Notes

  • Parts may vary depending on availability.

  • Intended for competition and high-performance street applications requiring maximum naturally aspirated power output.

Why Choose the RPG Max Effort N/A Short Block

The RPG Max Effort N/A short block is purpose-built for serious racers and engine builders demanding maximum performance from a naturally aspirated platform. Every component is chosen for strength, precision, and efficiency, delivering unmatched reliability and power density without forced induction. Whether you’re chasing all-motor records or building the ultimate N/A street car, this short block is the ultimate foundation.

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RPG Max Effort N/A 5.5L Short Block

$9,500.00

  • ACHIEVING

    4.8

    average rating

  • With

    95%

    positive reviews

  • LESS THAN

    3%

    return rate

Does it come with a warranty?

All parts are individually warrantied by the company who produces the part. Please look into each warranty terms and service.

What happens if I don't like it?

Customer satisfaction is our #1 priority so if you are unhappy with something in the build let us know and we can either recommend a part that will better suite your needs or look at more tuning options to meet your expectations.

How fast is shipping?

Shipping will depend on availability of parts. While we stock our most commonly sold parts we do not stock all parts. If a part is on back order or has a lead time we will communicate with you through the whole process so your are not left wondering why a part hasn't shipped yet.

What's the returns policy?

Once a part has been installed we can no longer take the part back.

Returns and Cancelations are subject to a restocking fee.

For our pre made builds sales are final so please contact prior to purchasing to make sure the build meets your expectations, its easier to adjust the build before the purchase rather than after.

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