Stock to stock my c7 felt more torquey for sure. But, once the E85 tune on the gen3 was dialed in I sold the c7. The mid range to 7500 just walked the LT1 for half the $$.I love the simplicity and effortless torque of my LT1 but there is nothing quite like a 5.0 at 7500 rpm. Cept maybe some voodoo.
I know I’m late to the party on this thread but they’re are a few reasons whyI was wondering if anyone on the forum as any links to posts of people who have purchased and run one of the 344/351 Coyote Stroker kits. I can't really find what I'm looking for, but maybe someone has seen a thread or videos with dyno pulls and info.
Read my comment above you’re 100 percent correct and also remember, that if Ford did redo the coyote block like GM did with the ls7That's really the one bad thing about the Mod motor in general - they are already "stroked". Ford had to do it to remain competitive with GM, but at the same time digging their heels, refusing to retool Romeo to accommodate a larger bore center. Larger bore = larger valves. Longer stroke really puts the hurtin' on everything because it drastically changes the acceleration of the piston. Plus, it throws off the rod to stroke ratio, and scuffs the crap put of the cylinder sides and pistons. To fix that, you gotta run a deeper skirt, which makes the piston heavier and more friction, and like you said, you basically get to the point where the piston almost falls out of the cylinder.
The LS7 (Corvette Z06 // 427 // 7.0L) had this exact problem. GM fixed the problem by lengthening the cylinder sleeves. It's a hack, yet worked quite well. Depending on the block geometry, it might technically be possible on a coyote, but by the time you do all that, you might as well just buy a racing block with a taller deck allowing you do to it right. I'm not sure why the balancing would be difficult other than the pistons or crank were lousy on the tolerances -- but I'm not an assembler, so I'm speaking as an internet quarterback does LOL.
Although I am not convinced Ford is willing to do a complete redesign of the coyote (electrification trumps everything right now) but if they did, it would be in their best interest to increase the bore centers. No other change (Short of using a better quality oil pump gear) will improve it more.
I'm an engine guy, I typically buy an engine and happen to get whatever car it's packaged in. I love the sound of the coyote and that it revs sky high over the LT1, and that's why I bought my mustang.
I found this blog post by JE Pistons which will help explain the "greek" for you
Its still too small......Id love to see a version of this engine with 427 CID and have some arm in t
Except one thing! That block has no engine coolant passages in it. It's only use is to fire it up in the staging lanes, burnout and run the quarter and shutdown. It absolutely could not be used on the street!!The MMR tall deck block that will get 400 CI is looking real good. Easily should get 700 N/A.
I don't think it will fit in a S550 without major changes.