Description
Hydraulic – Magnum: Street/strip applications. 10:1+ compression, 3000+ stall or 4 speed. 4.10 or lower gears and aftermarket intake. Very rough idle. OR Oval Track: Good for hobby stock in 454 where Hydraulic lifters must be used.; 292/292 Advertised Duration, 244/244 Duration .050″, .550″/.550″ Lift, 110 Lobe Separation; Valve spring upgrade required
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