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Travis Miller · 05-03-2014, 10:13 AM

As found on www.NHRAracer.com in the Accepted Products list, the 60447 Edelbrock head uses the same specs as the head it replaces.

"60447 Edelbrock..........Same runner CC's, chamber CC's, valve sizes as head replacing intake and exhaust."

This head is only allowed for S/S, not allowed in Stock.

05-03-2014, 10:13 AM	#2
Travis Miller Member Join Date: Jun 2007 Posts: 478 Likes: 1 Liked 276 Times in 27 Posts	Re: New aluminum heads for oval 396 As found on www.NHRAracer.com in the Accepted Products list, the 60447 Edelbrock head uses the same specs as the head it replaces. "60447 Edelbrock..........Same runner CC's, chamber CC's, valve sizes as head replacing intake and exhaust." This head is only allowed for S/S, not allowed in Stock.