HYDRAULIC – Thumpr : High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.
Product Features
- HYDRAULIC – Thumpr : High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.
- 279/297 Advertised Duration, 227/241 Duration @ .050 inch, .479 inch/.465 inch Lift, 107 Lobe Separation
- Valve spring upgrade required
SAME GREAT PARTS was in good condition ,and installed in time for the rod run.. thanks for the same great parts i have used for 45 years..M.A.R.A.T.
Beast!! installed on my 1969 chevy c20 gave … Beast!! installed on my 1969 chevy c20 gave it, that hot rod sound very intimidating to other drivers, gave truck alot of power to, very impressed still going
Five Stars have not installed it yet but i know its going to sound great