I have a 14.5 to1,289 wirh boss 302 rods Canfield aluminum heads Parker intake. 750 Demon carb in a 10 second 1965 Mustang. 289s RULE!!
would you take a 352 or 390? they are the same basic engine just like the 302 and 289. You get more cubic inches and more parts available for the 302 in the same size package and contrary to what dkstuck says they were in the Mavericks from 1970 on.
aint nothing wrong with a 352 . I drove a 66 F100 for years with one . pulled my racecar . even drove it from Louisiana to Wyoming and back a few times. I guees if i was trying to race it I wouls want the 390. But i would never want a motor that is that heavy in a racecar or mine. I will stick with my 289s. they are light I can twist them 10 grand and they stay together. I have been racing them 30 years
if you aimnt never seen a small block ford turn 10 grand you ain't ever seen many fast fords. wont nothing twist like a Ford.
Like I said, I'd like to see it. Not saying it's impossible. My friend used to pull 9K shifts in his stock Boss 302 so with newer heads, cams and a strong bottom end it can definitely be done.
Once you put a longer rod in a 302 to get the same rod ratio as a 289, there's no reason to NOT run a 302. Well, other than the short-comings of the block durability, but that's another story for another thread.
Well, the piston acceleration and thus the amount of force it puts on the rod is determined by the ratio between the rod and the crank stroke. Generally you divide the rod length by the crank stroke. So a 3" crank with a 6" rod has a 2:1 ratio, which is really good. So, if you put a bigger crank in your engine, you can keep the same shift points/redline speed by putting in a longer rod (and corresponding pistons with raised pins) to keep your same rod ratio.
I know too many people racing old 302s and 289s and too many that are on their second or third late model block. Gimme an old engine, any day. Mustangsandmore.com, Moneymaker runs a stock 289 crank and if memory serves shifts at around 9k. Show me a roller 5.0 that'll do that. 5.0 is an excellent engine, especially for a powerfull street car, but the crank and block is weaker than the old stuff, as well as the roller lifters can't do much over 6500, 7k seems to be the limit. The weight of the lifters is too great at those speeds. Most of those guys tend to go with solid roller or solid flat tappet, of course they generally run solids on older 302s as well if they're spinning that high.
9k RPM shifts in a BOSS motor I'd believe. They have forged steel cranks. I have one in my D.S.S. 306. It's going in this month Is it really a stock cranked 289 hitting 9K reliably with out mods? I might have miss understood. My friend used to race Clevelands and turned 9200 with the factory crank. But it was balanced chamfered oil holes and stress relieved. And even then they were dead after several races. They were running a Pinto and lost every time they came up against some guy with a de-stroked Cleveland that turned 11K. I also know of no difference in the old or new blocks strength wise. I have seen plenty of old blocks scatter. They are both only reliable to alittle over 550 crank HP with a stud main girdle. The only place the old blocks seem to be better is in the main caps and then only in the case of the Hi-po blocks (They have more metal in the main caps). Also if you spend alittle money you can make your hydrolic roller turn 7-8K RPM with those Anderson Ford Motorsport cam-spring-valve set ups. Though I'd personally go solid flat tappet and save an ass lode of money
Go to Mustangsandmore.com and ask Moneymaker. If memory serves, he's still running stock, unported heads and a 2bbl carb as well. I'm sure the crank has had some work done to it, balance, etc, but it is a factory cast 289 crank, or so he told me. He's not making tons of power with it. I don't really like the guy, but its kind of hard to argue with that much experience.
No offense, but I seriously doubt that it could pull to 9K with stock heads and a 2-barrel carb. In fact, I doubt it would pull to 6k...
