QUOTE(Sammy @ Sep 28 2006, 07:36 PM)
Yuppers, chebby be 1000 times better than ford. Then and now.
Cheaper power, more power, better efficiency, better reliability.
All that in a physically smaller package.
So, let's see, here are my answers. No, not necessarily,no,no,no,no,no. I think that covers all of those points.
chebby be 1000 times better than ford = matter of opinion, so too subjective to argue. But I can guarantee you by design, a 302/351W platform is far better than the 350 platform. Look at where the cam is driven v. the dist and oil pump for instance. Those twisting forces alone throw the timing off on the back cylinders on a Chevy by as much as 2deg on a "serious" engine. That has been proven, though I admit I can't find the article anymore. Don't even get me started on the siamese exhaust ports and that basically the LS stuff is a Ford... or that rear thrust in the Chevies that they too have gone away from.
Then and now. Well, then no. Now, yes. I like the LS stuff and the new 4.6/5.4L mod crap from the Fords I am not that impressed with. Can't get the cubes outta them you can with the LS stuff, so I give you that on the new ones. Course, recall my comment that the LS stuff is really more Ford to me than Chevy.
Cheaper power - not really anymore or for the last 10-12yrs. The 5.0L craze brought a LOT of great, similarly priced products to the market. And the aftermarket Ford heads almost always smoked the similar volume aftermarket Chevy heads for flow numbers.
more power - not true as similar cube Chevies v. Fords may make less, maybe the same. All about cam choice and cylinder heads among other factors. Plenty of similar designed Fords squeak out a Chevy due to the head issue mentioned above. A "stock intake port location" Chevy 200cc-ish head will flow maybe 286-290cfm with 2.02/1.60 valves. A "stock intake port location" Ford 200cc-ish head would flow 300cfm+. Flow bench don't lie.
better efficiency - not necessarily. Not even going to bother with why. See above. I can get great volumetric efficiency out of either on the dyno.
better reliability - no. Depends on parts in aftermarket stuff. For factory stuff, I don't trust the newer Ford stuff yet, but I can tell you I have never seen a Chevy cylinder head come in for a refresh with 300K miles on it out of a delivery van and I didn't need to touch the guides. The Ford 302 that did that just needed the valves and seats ground and lapped back together. Long live the 302! Actually the engine was still running fine, he pulled it out at 300K as he didn't want to get stranded on a long-haul delivery. Engine was in amazing shape. Still blown away by that 302 - I told him to gold-plate that one and mount it if it every actually died!
Oh yeah, put a big hyd or any solid tappet cam in your SBC or BBC and see how far you get. I built well over 500 engines in a 4yr stint at one shop and had 2 cams go flat. ONe SBC with a street hyd tappet and a BBC with a solid tappet cam. Go back to the "better design" comment and look under "narrow lobes" and "small tappet diameter"
I love the argument stated above as I have built them all and either is, for the most part, fine. I still freak out each time I hit the key on my SBC worried that cam is going to go flat. I have installed a dry sump JUST SO I COULD PRIME THE ENGINE EASILY EVERY TIME I FIRE IT UP from now on and have lifters with EDM holes in the bottom to better oil that cam. Freaks me the F out - if I knew I was going to chassis my car upfront, I woulda built a 302 stroker for sure.
physically smaller package - depends. 289/302 is narrower than the SBC. 351W is bigger in deck height than SBC, so you can get more stroke outta the stock block. I give props to the 4.125" bore 400 block tho' and have one for my engine.
All in good fun, to each his own. I say leave turboman alone as for every reason you say Chevy is better I can give you first hand experience where a Ford did as well or better for the same money (these days).