Join Date: Oct 2001
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Re: 351 Mass Air
My 95 is speed density. If memory serves, Cali's got MAF in 95, and everyone else for 96 on 5.8 motors.
Now, Blown, I agree with what you are saying. It is lots o bang for the buck. Much less guess work, Bignorm. But maybe that would take the fun out of it?
It still will be expensive. Blower alone around $2k.
My thing is, what fer? If you are getting into this thing alot, your mileage will really suffer. Bigblock or blower, or built 351, what for on a trail rig?
If I were going to mud bog and needed to spin big tires, yes. going to the drags, yes. Wanting to race the new Hemi dodge truck yes. Towing, yes. But on a trail rig, why? Maybe not even towing, my stock ford speed density 351 had no problem towing that big ol bronco with 429 up some steep hills and back to camp. I went all weekend on the same gas. I bet those built, and/or high cube motors went down to the station at least once. I like the relaibility of the stock setup.
For a builup Norm, and this is only my opinion, so chuck it if you wish...
351W rebuilt, maybe bored if needed, to factory spec. I know you want EFI, so the question here is what is simplist, best use of money, and/or most reliable, aftermarket throttle body or factory MAF? I have a feeling the aftermarket will be way cheaper, but can you dial it in and make it reliable?
Maybe some of the engine guys on here can strike me down, but I don't like the sounds of aluminum heads on iron block for a trail truck. I know new gasket materials tend to keep problems here to a minimum, and there are a number of factory trucks out there now running iron block/aluminum head, but, if not done correctly and carefully, this could be very painful in the long run. Finally, when I talk reliability I am also thinking longevity. That writeup mentioned 200k as a possibility for this motor. Well, the strength and quality of the compenents might allow that for sure. But, working together, he was not off to a very good start, and may be a bit optimistic here. Remember too, this guy was having an engine shop help with all this. He must have had one heck of a bill. [img]images/graemlins/shocked.gif[/img]