401 heads for 71- 454/425

JRAIKES · 10-27-2009, 11:01 AM

does any one know if any person has ran the 401 aluminum heads on a 71 chevelle, 454/425

Bobby Zlatkin · 10-27-2009, 11:12 AM

Not 100% on this, but I thought the 401 heads were a replacement for the square port closed chamber heads. The '71 454/425 (LS6) is a open chamber motor.

Brian Oakes · 10-27-2009, 11:21 AM

True 401 head is ok for the 71 454/425, and True the 401 head is used for replacement of the Square Port Head,Closed Chamber. But it is a open Chamber head. i bet they would help, get that 70 lbs off the nose of one of those boats, take the hood off about the same wt LOL

JRAIKES · 10-27-2009, 04:00 PM

Yes they are legal for the 71 454/425, not really worried about weight car hooks good, just wondering if anyone has used them on this combo.

10-27-2009, 11:01 AM	#1
JRAIKES Junior Member Join Date: Oct 2009 Posts: 33 Likes: 11 Liked 16 Times in 4 Posts	401 heads for 71- 454/425 does any one know if any person has ran the 401 aluminum heads on a 71 chevelle, 454/425

10-27-2009, 11:12 AM	#2
Bobby Zlatkin Member Join Date: Mar 2003 Location: Mills River, NC Posts: 417 Likes: 0 Liked 0 Times in 0 Posts	Re: 401 heads for 71- 454/425 Not 100% on this, but I thought the 401 heads were a replacement for the square port closed chamber heads. The '71 454/425 (LS6) is a open chamber motor. __________________ Bobby & Norene Zlatkin L/SA

10-27-2009, 11:21 AM	#3
Brian Oakes Senior Member Join Date: Apr 2004 Posts: 560 Likes: 1 Liked 399 Times in 111 Posts	Re: 401 heads for 71- 454/425 True 401 head is ok for the 71 454/425, and True the 401 head is used for replacement of the Square Port Head,Closed Chamber. But it is a open Chamber head. i bet they would help, get that 70 lbs off the nose of one of those boats, take the hood off about the same wt LOL

10-27-2009, 04:00 PM	#4
JRAIKES Junior Member Join Date: Oct 2009 Posts: 33 Likes: 11 Liked 16 Times in 4 Posts	Re: 401 heads for 71- 454/425 Yes they are legal for the 71 454/425, not really worried about weight car hooks good, just wondering if anyone has used them on this combo.