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Master Racing Overhaul KitGM TH-400
250 over GM L98 head(see footnotes here)
The exit of this valve incorporates a female 1/8" NPT for connection of an appropriate drain tube to be attached if required
Silver and Chrome
Each step of the manufacturing history of every Ultra connecting rod is meticulously maintained by our manufacturing team
Calibrated Test Spring CO5316 Product:Default Title Master Racing Overhaul KitGM TH-400Calibrated Test Spring CO5316 5316 These bench top testers are really the only sure way to check valve spring pressure. This model will handle springs up to 2 diameter and 4 free length, so its useful for more than just checking valve springs. The 0 1000lb. range by 5 lb. increment scale allows you to check open pressure as well as seat pressure. The use of a test spring is highly recommended as the unit can be tested and recalibrated in the field
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