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© 2009 JTR Precision Engines-All Rights Reserved Designed and Maintained by Jorin Rudd |
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To Contact us: JTR Precision Engines 2920 E. Hwy 40 Craig, CO 81625 Phone: 970-620-1014 Fax: 866-296-6045 E-Mail: jorin@jtrengines.com
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Machine Shop Member #42769 |
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Magnaflux crack testing, the metal powder stands up along this crack. |
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Torque plate honing ensures a perfectly straight and round bore. |
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One way of measuring the bearings oil clearance on the rod journal. |
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Custom porting and cylinder head building, note the screw in studs, guideplates, beehive springs and porting on the left-hand head. The right-hand head is a stock 5.9L 360 Magnum head. The left-hand head is a JTR custom built EQ head for Magnum Engines. |
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This block has been stepped at the bottom of the bore to be sleeved. |
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This sleeve is installed with a 0.001-0.002” interference fit. |
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Measuring crankshaft end play on this 350, 0.0045” on this one. |
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The sleeve has been milled flush and is ready for final finishing. |
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This was a beautiful block that was brought in to be cleaned up. |
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Here is a front view of the cleaned up rusty block. |
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Here is a side view of the old rusty block after blasting was finished. |
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A 5.0L GM Boat Engine full of seeds… brought in through the exhaust by a mouse. |
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The cylinder head packed with seeds after the engine was turned over to start and didn’t start for some reason. |
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A shot of some of the seed in the ports on the exhaust. There was 2-3lbs of seed removed from this engine. |
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SBC #186 Head after a full rebuild. |
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This is a cracked balancer taken off of a brand new crate engine that we checked over for a customer. |
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Very bad exhaust seat work from a crate engine that was brought into us new to be inspected. |
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Here is the same seat after having a DuraBond hardened seat installed and cut to the head prior to final blending. The valve would have pulled through the head if this wasn’t corrected. |
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Here is a factory sbc rod and a 3D stroker style rod side by side to show the additional cam clearance afforded by the stroker rod. |
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Custom angle backcuts on some factory valves to comply with some class rules but make more power. |