351 heads?

gregkelley · March 24th, 2007, 07:53 PM

Will 351 heads fit on a 302? I have been told by several people that they will but just wanted some other opinions.

Stangzilla · March 24th, 2007, 08:21 PM

Well 302 heads fit on a 351 so I would think they do..

1slo5.0 · March 25th, 2007, 05:28 AM

Yes they do but you will need tappered bolts or studs or head bolt bushings. Now I have to ask, why do you want to put 351 heads on your 302? You will gain nothing, and if you have an 87-93 5 liter you will probably lose horsepower.

88LSC · March 25th, 2007, 02:28 PM

The E7TE heads are actually 351W truck heads that saved the Mustang power wise for 87.But anyway's the 69-74 heads and the GT40(lighting) are the only good 351W heads.

1slo5.0 · March 25th, 2007, 02:39 PM

Actually E7TE's were 302 truck heads, hence the 7/16 head bolt holes.

88LSC · March 25th, 2007, 02:58 PM

Originally Posted by Darrell

Actually E7TE's were 302 truck heads, hence the 7/16 head bolt holes.

I thought the 302 truck engines were still using left over E5 heads,and then they decided to cast the E7TE heads with 7/16 holes for use on the 5.0HO and then just drilled them out for the 351W.

gregkelley · April 14th, 2007, 09:47 PM

I was just wondering they have been beefed up and have been polished and shaved to raise the compression. The guy only wants $100 for them.

B.A.M302 · April 15th, 2007, 01:38 AM

I have 351 heads on my 87 5.0 and I've seen a huge improvement from them .

Speedstang302 · April 15th, 2007, 01:14 PM

if anything just get the hole 351 motor and bore it...screw 302's get some real horsepower #'s!!

1slo5.0 · April 15th, 2007, 02:44 PM

Originally Posted by B.A.M302

I have 351 heads on my 87 5.0 and I've seen a huge improvement from them .

Exactly how much horsepower did you gain from heads that are almost identical to a 302 head?

B.A.M302 · April 16th, 2007, 01:56 AM

Originally Posted by Darrell

Originally Posted by B.A.M302

I have 351 heads on my 87 5.0 and I've seen a huge improvement from them .

Exactly how much horsepower did you gain from heads that are almost identical to a 302 head?

I gained about 65 HP from the heads I had 3 to 5 angle valve, ported polished and bigger intake and exhaust valves installed on them as well as heavy duty springs.

1slo5.0 · April 16th, 2007, 02:21 PM

Originally Posted by B.A.M302

I gained about 65 HP from the heads I had 3 to 5 angle valve, ported polished and bigger intake and exhaust valves installed on them as well as heavy duty springs.

Just out of curiousity what is the casting numbers on these heads? If you gained 65 horsepower from a set of ported stock heads, you know a secret that alot of engine builders would kill for. There are people that don't gain that with aftermarket heads......

March 24th, 2007, 07:53 PM	#1
gregkelley Regular Join Date: Feb 2007 Posts: 51 iTrader: 0 reviews	351 heads? Will 351 heads fit on a 302? I have been told by several people that they will but just wanted some other opinions.

March 24th, 2007, 08:21 PM	#2
Stangzilla MM Fanatic Join Date: Aug 2006 Location: On my way to Baines's house!! Posts: 3,298 iTrader: 0 reviews	Well 302 heads fit on a 351 so I would think they do.. __________________ Rotating The Earth 1320 Feet At A Time!! Today, I found out that when I masturbate at night while watching internet porn I cast a huge shadow on the curtain and the entire street is able to see it.

March 25th, 2007, 05:28 AM	#3
1slo5.0 MM Ninjas! 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: North Fond du Lac, Wisconsin Posts: 11,375 iTrader: 1 reviews	Yes they do but you will need tappered bolts or studs or head bolt bushings. Now I have to ask, why do you want to put 351 heads on your 302? You will gain nothing, and if you have an 87-93 5 liter you will probably lose horsepower. __________________ My daily driver has 16 cylinders and 4400hp @ 1000 rpm.... ***1988 Mustang GT - Stock....almost

March 25th, 2007, 02:39 PM	#5
1slo5.0 MM Ninjas! 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: North Fond du Lac, Wisconsin Posts: 11,375 iTrader: 1 reviews	Actually E7TE's were 302 truck heads, hence the 7/16 head bolt holes. __________________ My daily driver has 16 cylinders and 4400hp @ 1000 rpm.... ***1988 Mustang GT - Stock....almost

April 15th, 2007, 01:38 AM	#8
B.A.M302 Regular Join Date: Jan 2007 Location: maryland Posts: 89 iTrader: 0 reviews	I have 351 heads on my 87 5.0 and I've seen a huge improvement from them . __________________ Crate 302, Trick Flow Intake R, 75mm MAF, bbk 75mm throttle body, bbk 76mm EGR spacer, 351 Winsor heads ported and polished by Bennet Racing, Lunati cam, 30 pd. Injectors, TKO 500, aluminum drive shaft, bbk mid length headers, bbk off road H pipe, 3:55,

March 25th, 2007, 02:28 PM	#4
88LSC Regular Join Date: Oct 2006 Location: Lake Geneva, WI Posts: 58 iTrader: 0 reviews	The E7TE heads are actually 351W truck heads that saved the Mustang power wise for 87.But anyway's the 69-74 heads and the GT40(lighting) are the only good 351W heads.

April 14th, 2007, 09:47 PM	#7
gregkelley Regular Join Date: Feb 2007 Posts: 51 iTrader: 0 reviews	I was just wondering they have been beefed up and have been polished and shaved to raise the compression. The guy only wants $100 for them.

April 15th, 2007, 01:14 PM	#9
Speedstang302 I Post Entirely Way Too Much 1996 Mustang GT 13.64@101mph Join Date: Apr 2007 Location: Massachusetss Posts: 5,799 iTrader: 1 reviews	if anything just get the hole 351 motor and bore it...screw 302's get some real horsepower #'s!!

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