firing order

1970MACHI · 08-11-1999, 07:18 AM

I am still kind of new at this so please don't laugh to much. Been reading in magazines about the 302 and 351 windsor motors , (my 70 has a 351W) and I have also been looking at some performance upgrades for my car and there are certain parts listed that will work with a 289/302 and 351W with 302 firing order?????? Now here is the question,,,, What is the firing order for a 302 and a 1970 351W I can tell what my firing orger is by looking at the intake which is no big deal. But what is the difference ????? please enlighten me so I don't go around looking silly . Thanks in advance for your help .

2bav8 · 08-11-1999, 06:19 PM

Early 289/302 firing order is 1-5-4-2-6-3-7-8
This changed with the HO 302 (5.0) in 1985 I believe.

All 351Ws are 1-3-7-2-6-5-4-8, which is the same as the HO 302 (5.0)

You can swap cams back and forth but you have to be careful with the roller cams, because they will not work with a non roller motor. They do make retro roller conversion kits however, using special cams.

------------------
http://www.comports.com/2bav8

70musclecar · 08-12-1999, 08:23 PM

with the 1970 351w is it possable to run a paxton super charger on it or would i have to modify the engine too much to make it work??? just trying to make a bit more horses is all .. i am also the originator of the first question , i use one name at work and one at home cause of different e-mail addresses ..

2bav8 · 08-13-1999, 02:46 AM

I believe that would be a question for Paxton, as they sell the supercharger kit for the 289/302. They have a website at http://www.paxtonautomotive.com

Personally, I don't see why it wouldn't work, the block is only a little taller...

------------------ http://www.comports.com/2bav8

[This message has been edited by 2bav8 (edited 08-13-1999).]

351w67MustangGuy · 08-13-1999, 06:49 PM

I didn't even know they made the windsor in 1970, I thought they stopped when the cleveland came out. Did it come stock in your 70 or did someone/you put it in?

------------------
67 Mustang Coupe w/351 Windsor 405hp 2.79 gears & street tires ran 13.01 @ 105.9 mph

70musclecar · 08-14-1999, 07:52 PM

that is the way the lady i bought it from said she bought it when it was brand spanking new (she was supposedly the original owner). the gentleman that is doing some of the restoration work on is researching the V.I.N. for me to let me know just exactly what the car is supposed to have . as the door tag had been removed when it was repainted by her . It also has a c4 automatic and a nine inch rear with some fairly low gears, not quite sure as to what they are yet . AS to your question about the 1970 and a 351W a close friend of mine when we were in high school had a yellow and black MACHI with a 351W4V in it from the showroom of the dealer . Could have been a special order I don't really know . But they are out there .

travs69 · 08-17-1999, 09:42 PM

the 351w has always been produced from 1969 to 1996..

08-11-1999, 07:18 AM	#1
1970MACHI Registered Member Join Date: Jul 1999 Location: winchester,virginia,usa Posts: 2	firing order I am still kind of new at this so please don't laugh to much. Been reading in magazines about the 302 and 351 windsor motors , (my 70 has a 351W) and I have also been looking at some performance upgrades for my car and there are certain parts listed that will work with a 289/302 and 351W with 302 firing order?????? Now here is the question,,,, What is the firing order for a 302 and a 1970 351W I can tell what my firing orger is by looking at the intake which is no big deal. But what is the difference ????? please enlighten me so I don't go around looking silly . Thanks in advance for your help .

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
My illumination on Firing Order for 5.0 HO	Fox Body	Windsor Power	0	04-28-2003 03:59 PM
Changing firing order and cam selection	BigMoose	Classic Mustangs	1	01-05-2003 07:16 PM
Messed up firing order? I need help!	pehlen	Classic Mustangs	4	04-02-2002 07:17 PM
Firing order (someone answer really fast please!)	Super_Stang	Windsor Power	3	07-30-2001 11:53 AM
firing order	David Fulford	Classic Mustangs	3	03-27-2001 02:35 PM

08-11-1999, 06:19 PM	#2
2bav8 Registered Member Join Date: Jan 1999 Location: Scottsdale, AZ Posts: 32	Early 289/302 firing order is 1-5-4-2-6-3-7-8 This changed with the HO 302 (5.0) in 1985 I believe. All 351Ws are 1-3-7-2-6-5-4-8, which is the same as the HO 302 (5.0) You can swap cams back and forth but you have to be careful with the roller cams, because they will not work with a non roller motor. They do make retro roller conversion kits however, using special cams. ------------------ http://www.comports.com/2bav8

08-12-1999, 08:23 PM	#3
70musclecar Registered Member Join Date: Jul 1999 Location: inwood/wv/usa Posts: 8	with the 1970 351w is it possable to run a paxton super charger on it or would i have to modify the engine too much to make it work??? just trying to make a bit more horses is all .. i am also the originator of the first question , i use one name at work and one at home cause of different e-mail addresses ..

08-13-1999, 02:46 AM	#4
2bav8 Registered Member Join Date: Jan 1999 Location: Scottsdale, AZ Posts: 32	I believe that would be a question for Paxton, as they sell the supercharger kit for the 289/302. They have a website at http://www.paxtonautomotive.com Personally, I don't see why it wouldn't work, the block is only a little taller... ------------------ http://www.comports.com/2bav8 [This message has been edited by 2bav8 (edited 08-13-1999).]

08-13-1999, 06:49 PM	#5
351w67MustangGuy Registered Member Join Date: Jul 1999 Location: Bay Area, California Posts: 103	I didn't even know they made the windsor in 1970, I thought they stopped when the cleveland came out. Did it come stock in your 70 or did someone/you put it in? ------------------ 67 Mustang Coupe w/351 Windsor 405hp 2.79 gears & street tires ran 13.01 @ 105.9 mph

08-14-1999, 07:52 PM	#6
70musclecar Registered Member Join Date: Jul 1999 Location: inwood/wv/usa Posts: 8	that is the way the lady i bought it from said she bought it when it was brand spanking new (she was supposedly the original owner). the gentleman that is doing some of the restoration work on is researching the V.I.N. for me to let me know just exactly what the car is supposed to have . as the door tag had been removed when it was repainted by her . It also has a c4 automatic and a nine inch rear with some fairly low gears, not quite sure as to what they are yet . AS to your question about the 1970 and a 351W a close friend of mine when we were in high school had a yellow and black MACHI with a 351W4V in it from the showroom of the dealer . Could have been a special order I don't really know . But they are out there .

08-17-1999, 09:42 PM	#7
travs69 Registered Member Join Date: Sep 1998 Location: East Alton, IL, USA Posts: 51	the 351w has always been produced from 1969 to 1996..