351w heads question

Mopar1 · 09-05-2002, 05:30 PM

Which stock 351W heads are the best, what casting # do I need to look for?

gofastmercury · 09-05-2002, 06:25 PM

I believe it the 70 or 69 casting, ( I have 70's on my comet) The time you find/buy a set, get them rebuilt,put in larger valves, hope there not cracked(not a problem that I know of) you could get a set world heads or something like that. A little more money but worth it.

6T9PONY · 09-05-2002, 06:44 PM

'69 351W heads are the best of the stocks, but IMO they still suck. They have 1.84/1.54 valves, TINY! If you want stock, go with the '69s, they'll have a casting number of C9XX----........

If you have the money, go with a set of aftermarkets with bigger valves. TFTW heads have 2.02/1.60 valves, are about $1100, and you don't have to flycut the stock pistons. Performer RPMs have 2.02/1.60s and are about the same price, but you do have to flycut the pistons. Performer heads have 1.90/1.60 (I think???) but they work with the stock pistons. There are many, many options out there for aftermarket heads. The 3 I listed are all aluminum, but there are plenty of iron ones, too.

Mopar1 · 09-06-2002, 09:34 AM

Yea, you guys are right. I will probably go with one of the roush heads. Just exploring all possibilities. Its just overall, stock ford heads just suck when compared to stock GM( maybe) and Mopar for sure. Sorry just call it like I see it. The roush heads have got my intrest though.

09-05-2002, 05:30 PM	#1
Mopar1 Registered Member Join Date: Mar 2002 Location: Lakewood, Wa Posts: 161	351w heads question Which stock 351W heads are the best, what casting # do I need to look for? __________________ '77 Aspen R/T: 318 w/273 heads, 4spd, Hurst Shifter, 600 holley, edelbrock intake, 8 3/4 axle, 3.23 sure-grip, dual 3" exhaust, MP cam 276 / 276 duration 490 / 490 mech solid lifter, Super Stock Springs (15.65@88 3900lbs) '91 Mustang LX: .030 Bored, Typhoon Intake, 4.10's, Lentech VB, BBK 70mm TB, FMS A/C elim bracket, 19lbs inject, off road H-pipe, 75mm pro-m MAF, FRP unequal shorty, stormin normin hood. 3420 Lbs w/ 220 (me) and 13 gal gas. '02 SS Camaro

09-05-2002, 06:25 PM	#2
gofastmercury Registered Member Join Date: May 2001 Location: calgary alberta canada Posts: 366	I believe it the 70 or 69 casting, ( I have 70's on my comet) The time you find/buy a set, get them rebuilt,put in larger valves, hope there not cracked(not a problem that I know of) you could get a set world heads or something like that. A little more money but worth it. __________________ 93LXcopcarSOLD14.3@96 @ 4500ft 2.02 60ft on street tires. my 67 ranchero NOT A 390 ANY MORE! 460! 3.70's cast manifolds, comp cams 262H, performer, 750DP 100K out of 79 F250 NEW(oct20/02)14.58@95mph 2.3 60 ft corrects to:13.86@100 66 merc comet351w, isky roller 600 lift 268/260@.050, vic jr. 700DP, 5000stall, 4.56's c-4, 3400lbs with driver 12.3@110 @ 4000ft 1.69 60 ft corrects to:11.69@115

09-06-2002, 09:34 AM	#4
Mopar1 Registered Member Join Date: Mar 2002 Location: Lakewood, Wa Posts: 161	Yea, you guys are right. I will probably go with one of the roush heads. Just exploring all possibilities. Its just overall, stock ford heads just suck when compared to stock GM( maybe) and Mopar for sure. Sorry just call it like I see it. The roush heads have got my intrest though. __________________ '77 Aspen R/T: 318 w/273 heads, 4spd, Hurst Shifter, 600 holley, edelbrock intake, 8 3/4 axle, 3.23 sure-grip, dual 3" exhaust, MP cam 276 / 276 duration 490 / 490 mech solid lifter, Super Stock Springs (15.65@88 3900lbs) '91 Mustang LX: .030 Bored, Typhoon Intake, 4.10's, Lentech VB, BBK 70mm TB, FMS A/C elim bracket, 19lbs inject, off road H-pipe, 75mm pro-m MAF, FRP unequal shorty, stormin normin hood. 3420 Lbs w/ 220 (me) and 13 gal gas. '02 SS Camaro

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09-05-2002, 06:44 PM	#3
6T9PONY All about the Windsor. Join Date: Feb 2000 Posts: 2,052	'69 351W heads are the best of the stocks, but IMO they still suck. They have 1.84/1.54 valves, TINY! If you want stock, go with the '69s, they'll have a casting number of C9XX----........ If you have the money, go with a set of aftermarkets with bigger valves. TFTW heads have 2.02/1.60 valves, are about $1100, and you don't have to flycut the stock pistons. Performer RPMs have 2.02/1.60s and are about the same price, but you do have to flycut the pistons. Performer heads have 1.90/1.60 (I think???) but they work with the stock pistons. There are many, many options out there for aftermarket heads. The 3 I listed are all aluminum, but there are plenty of iron ones, too.