late engines
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Re: late engines
6psi is great for a carbi. Once you go EFI you could use the low pressure pump as a lift pump to a swirl pot then a high pressure pump to the Injection rails. I use both pumps on my Mustang.
I will someday think of something clever to say.
Re: late engines
new question
what would the firing order be as there are a few different ones I believe one for 351 one for 302 and 302 ho this engine I have is out of a 94 ford sedan fairlane I think engine numbers are jgswrb40527 if that helps
what would the firing order be as there are a few different ones I believe one for 351 one for 302 and 302 ho this engine I have is out of a 94 ford sedan fairlane I think engine numbers are jgswrb40527 if that helps
Re: late engines
302HO and 351 are the same.
You can only have two different firing orders on the one crank.
If it's not a HO engine, it will be the standard windsor firing order. It's the cam on the 302 that decides the firing order.
289 1-5-4-2-6-3-7-8
302 (Pre-82) 1-5-4-2-6-3-7-8
5.0 1-5-4-2-6-3-7-8
5.0 HO 1-3-7-2-6-5-4-8
5.0 Truck 1-5-4-2-6-3-7-8
351 1-3-7-2-6-5-4-8
You can only have two different firing orders on the one crank.
If it's not a HO engine, it will be the standard windsor firing order. It's the cam on the 302 that decides the firing order.
289 1-5-4-2-6-3-7-8
302 (Pre-82) 1-5-4-2-6-3-7-8
5.0 1-5-4-2-6-3-7-8
5.0 HO 1-3-7-2-6-5-4-8
5.0 Truck 1-5-4-2-6-3-7-8
351 1-3-7-2-6-5-4-8
Re: late engines
Just for the record - the 351/HO firing order is the better firing order to have because the double hit is on the rear rather than on the front bearings. It is also the strong section of the block.
I will someday think of something clever to say.
Re: late engines
so the cranks are the same in either early 302 and late 302 5.0 so when buying a cam if it says ho on the part number use that firing order is there much of an advantage using a ho cam
Re: late engines
The design is the same though the balance weights are different aka 28oz verses 50oz for later engines. The Cams are the same early 289/302/351 just the position of the lobes change depending on being a 351/HO firing order or not. When I change the cam I will always try and get a 351/HO firing order Cam - as I said above the firing order puts the double firing on 4-8 cylinders instead of the 1-5. Places the load on a stronger part of the engine. Is it a priority - depends - I think it is important and so did Ford. Having said that early engines do not seem to die because of the firing order though it was changed when the 302 block was cast thinner and a performance version of the engine was needed. So for me thats more than enough reason that if I am changing the cam to look for a 351/HO firing order.
Last edited by boofhead on Sun May 01, 2016 6:45 pm, edited 1 time in total.
I will someday think of something clever to say.
Re: late engines
I am familiar with the different counter weights. so all I need to do is change the cam and use the firing order to match the cam
my engine cam without plug leads on so don't know what it is, but this info will get me sorted
my engine cam without plug leads on so don't know what it is, but this info will get me sorted
Re: late engines
Do you need to change the cam at all? You can look to see what valves are moving when you turn the engine over then you will know the order. Only need to get it to one then turn to see which is next. It will be either 1-5 or 1-3. In any case, yes the cam determines the firing order.
Last edited by boofhead on Sun May 01, 2016 7:54 pm, edited 1 time in total.
I will someday think of something clever to say.
Re: late engines
the engines coming apart at least for the once over to see what I've got shells ,pump, rings, chain and maybe lap valves, repaint generally a refresh if its good inside, I always put a new cam and lifters in anyway .
its supposed to be a low mileage motor ( nana drove it on Sundays) I say that with the utmost sarcasm, and we've all heard that before .
will give me a chance to change what needs changing then I know what's in there, i'm not building a monster just a nice clean stocky for driving so the cam will be small, hence the info needed about firing order as I have no idea what's in it now
its supposed to be a low mileage motor ( nana drove it on Sundays) I say that with the utmost sarcasm, and we've all heard that before .
will give me a chance to change what needs changing then I know what's in there, i'm not building a monster just a nice clean stocky for driving so the cam will be small, hence the info needed about firing order as I have no idea what's in it now
Re: late engines
Makes sense. Hope you post up the progress.
I will someday think of something clever to say.
Re: late engines
ive text you a picture boofhead of the sump that's on it now I think it will clear as it is already a front hump sump
Last edited by 123abc on Wed May 04, 2016 2:21 am, edited 1 time in total.
Re: late engines
next item distributor will an early diz fit or is there a difference in the drive size like clevos
Re: late engines
Distributor should be OK.
I've got a late model cam sensor in my old engine.
I've got a late model cam sensor in my old engine.
Re: late engines
If its a roller cam engine the Distributor gear needs to be steel not iron or you'll toast the cam.
Last edited by Shaunp on Wed May 04, 2016 4:51 am, edited 1 time in total.
Re: late engines
the efi has a front sump already will it fit in
Last edited by 123abc on Wed May 04, 2016 6:22 am, edited 2 times in total.