Every engine below is machined to spec in our own Kaufman, Texas shop and backed by a warranty. Cummins is our specialty β browse every platform, build tier, and price below, or use the Cummins Configurator for an interactive build & instant estimate.
The legendary 12-valve 6BT β fully mechanical, no computer. Due to the age and a national shortage on blocks, all engines in this year range without a core may cause a delay in delivery times. If you have no core to exchange, please call for availability.
Restores factory power. The right call for a daily-driver replacement.
Head studs + O-ringed head. A mild power bump while staying streetable and reliable.
ARP 625 studs, upgraded valve springs, O-ringed head. Serious tow rig or street-driven competition truck.
625 studs, 103lb springs, fire-ringed block & head, ARP main studs, coated pistons, Wagler rods. Max-effort drag/pulling builds β not a daily driver.
New head bolts, PAI complete engine kit, and a new oil pump on every build.
Straightforward stock replacement for a '98.5β2002 Ram.
Head studs + O-ringed head added for a safe, mild power increase.
625 studs, upgraded springs, O-ringed head, Cometic gasket for reliable higher-boost power.
Full race package β 625 studs, 103lb springs, fire-ringed block & head, ARP main studs, coated pistons, Wagler rods.
New head bolts, PAI complete engine kit, and a new oil pump on the stock tier.
Stock replacement for a 2003β2007 5.9L Cummins.
Head studs added for a mild, streetable power increase.
625 studs/springs, O-ringed head, and 12-valve rods for a strong 750HP-capable build.
625 studs, 103lb springs, fire-ringed block & head, Wagler Street Fighter rods, ARP main studs, coated pistons.
All 6.7L 07.5β18 longblocks come standard with head studs.
Head studs standard. Covers stock replacement up through a mild 500HP build.
625 studs/springs, O-ringed head, and 12-valve rods for a strong, higher-boost build.
625 studs, 103lb springs, fire-ringed block & head, Wagler Street Fighter rods, ARP main studs, coated pistons. Recommended for anything running compounds or over 1000HP.
Conversion builds and industrial-spec longblocks for equipment and stationary applications.
Longblock core exchange for pumps, generators, and equipment applications.
Longblock core exchange for equipment and stationary applications.
Stock 500HP-rated longblock conversion. Pricing shown with and without core exchange; the shop confirms core eligibility.
Don't need a full longblock? Exchange just the cylinder head. All packages are crack checked, acid washed, vacuum checked, with valve seat repair/replacement and valve resurfacing or replacement as needed.
A straight stock replacement head.
Performance valve springs and an O-ringed surface for better gasket sealing under higher boost.
Our top head package β fire-ring machining with fire rings, matching gasket, and upgraded springs for the highest-power applications.
Add these to any longblock above. Skip an add-on if your chosen build tier already includes it.
Prices above are starting estimates, not final quotes. Longblock prices show with and without an eligible core exchange; head packages show the package price plus the refundable core charge. Selected add-ons are extra. Taxes and freight are not included in base prices; the listed freight add-on is an estimate. A Motor Parts + builder confirms availability, fitment, core acceptance, deposit/refund timing, freight, and your exact quote.
Increasing horsepower well beyond factory ratings puts added stress on the factory transmission, clutch, driveline, axles, and cooling system. Ask your builder about supporting driveline upgrades on Comp and Strip tier builds.
Every build carries our 6-month, unlimited-mile warranty, subject to standard exclusions (misuse, improper installation, lack of maintenance, and modifications beyond the build spec quoted). Full written terms provided with your quote.
Call for a custom quote on any engine above, or use the interactive configurator for a real-time estimate.
Related information: Browse rebuild kits Β· Build an engine estimate Β· Explore machine-shop services Β· Freight and pickup details Β· Read warranty terms.
Have a question about your engine or parts? Call 972-932-4030 or request a quote.