Originally Posted by StxDangerRanger
I might be wrong, but i thought compression had to do with the whole package. Camshaft, Heads and Pistons.
Compression ratio is a piston and heads thing only, the cam is to operate the valves and has nothing to do with compression except closing the valve so you can actually get some.
Going to a higher compression ratio will result in a little more power but also you will need to run higher octane fuel.
I know you said no V8 but a good running STOCK V-8 will give you more torque than a prepped-street v6 and run longer and better.
Yes a V8 sometimes takes a little longer to install but not always, donít write it off until you get some numbers together on the V8 swap.
Canít help you on the SOHC Piston fitment but talk about taking extra time, you need to measure them up first to see if they are even close, OD, Height, valve reliefs, ring groove locations, any dome versus flat top and then you need to mount on a rod, put on the rings and start measuring again. You will need deck heights, top of piston placement referencing the block and the heads, block bore vs OD of pistons, and then you need to put the heads on the cam in and see where the valves go, too high, too low.
What you are thinking on is a complete restructuring of the upper end of the engine and you will need to check everything, TWICE and then you get to fire it up, not knowing for sure if the measurements were completely correct and if you are lucky it will run. Then the higher compression ratio throws a code because of excessive detonation.
I have no idea of your ability, your profession maybe a mechanic but this isnít just bolt some stuff together and throw it in and drive away, you will need to play the game and do the math and hope.
OK back to the V8Ö with a kit it is a bolt in, if the V8 was rebuilt stock it will still have a lot more HP and Torque to move a Ranger than a V6 and it will run for a long time and give all the power you should normally need. If you want more HP there are all kinds of kit out there for the 5.0L Windsor's and you can actually bolt on the HP as needed.
OK too much talk, just think before leaping; there is a lot of work to rebuilding an engine with stock parts little lone switching thing out !
4x4, 5sp, Std Cab, Stepside, E4 Red
4Ē Lift - Coil-Overs, 6Ē SkyJacker Leafs - No Blocks (Mistake)
31 Spline FX4 Rear Axle, 4.56s and OX Locker, Hurst Shifter w/Optional Stick and "Made by Grev" alignment adapter