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James L Miller · 07-27-2021, 11:19 PM

3614476 – MOPAR Stage IV, B/RB-series big-block, 2.08/1.74 valves, legal MW replacement for the 1964 (and maybe other) MW heads in NHRA.

4532287 SS only – MOPAR Stage V, B/RB-series big-block, 2.08/1.74 valves, 906 type replacement head.

07-27-2021, 11:19 PM	#2
James L Miller Member Join Date: Apr 2005 Posts: 494 Likes: 6 Liked 25 Times in 16 Posts	Re: BB Mopar Head ID 3614476 – MOPAR Stage IV, B/RB-series big-block, 2.08/1.74 valves, legal MW replacement for the 1964 (and maybe other) MW heads in NHRA. 4532287 SS only – MOPAR Stage V, B/RB-series big-block, 2.08/1.74 valves, 906 type replacement head. __________________ Mopar 2 Ya!