Ok I have a 88 F150 with a 300 L6 with a broken ring and scorn cylinder wall. Looking a Boring the block 0.030" with larger pistons. What is a good piston and cam to match. Bigger injectors? Looking for more power and torque. Suggestions?

 

Swap in a 351.

 

If you want a lot more power/torque than yeah, swap in a 5.8. but if your not wanting to get crazy with it the 300 would do fine...

 

V8 are over rated. Its a proven fact that you get more torque from inline 6 motors. PLus the money i put in to to do a swap I'm sure that I can build up the internals and have more torque then a 5.8

 

Actually...For a $1,500 budget (Just to throw a number out there)...

On a 351w, you could-

-Add headers
-Camshaft/lifters
-True Double Roller Timing Chain
-Port the heads (Depending on if they're the e7's or not......The e7's are a good factory set of heads to start with)...

And have more hp/tq than a 300.....

BUT....

In terms of reliability....The 300 is almost unequaled....

For that same $1,500 budget on a 300...

-Keep the EFI exhaust manifolds....They're nearly identical to the aftermarket headers from Hedman.....Just sayin'...
-Bore the engine .030" to clean, and re-square the bores up to factory specs...
-Add flat top pistons to raise the Compression Ratio (OR, just shave the head)...
-Port the head out (This, by far is the best way to effectively, dollar for dollar, way to wake a 300 up)...
-Add larger valves
-An Isky Racing 256 camshaft

And then, MAYBE....You'd MIGHT be to 200-250-ish hp range with the 300....Then again, the simplicity of the engine, and ease of maintenance.....To ME, is worth just keeping the engine...

Not counting, the added cost of the engine mounts, the 351w engine, the radiator, computer, etc......Money that could go on the 300....

Just my personal opinion...keep the good ol' 300....

Take a read down in the Inline 6 section, or Fordsix.com....

 

Thanks Sidewinder. I see that you are are the same page as me. Plus the way I see it 250hp on a inline 6 should be roughly 325- 400 torque Correct?

 

I honestly cant wait till I can get the 300 out of my truck and a 351w in to it. I wouldnt bother rebuilding the 300. Neither engine is any more complex than the other and running parts trucks are cheap and plentiful (around here anyway) As for reliability I see/own more high mileage 351's than 300.

If you are dead set on keeping the 300 check out fordsix.com

Scott

 

theres a 470k mile 5.4 sitting outside but that doesn't make it a better engine!

I'm working on a 5.0 to 4.9 swap in my bronco right now that I have high hopes for. I won't argue that the 351 isn't a good, powerful engine (eventually plan to have a 351 based stroker in the capri) but for a good all around engine a well built 300 is tough to beat.

 

The 300ci I6 is WAY more simple than an v6, v8.........1 head, no timing chain, etc......Can't get any better....

 

Not wanting to hijack your post but I have been thinking about my 95 as the miles rack up and wonder what problems a person would encounter if I swapped a 300 in for the 5.8? My engine is strong and does not use oil, it does have a slight leak in the pan gasket, and is knowhere near ready to quit but I would rather have the 300.