Since this thread has spun wildly out of control from it's original question, the funny thing is, if you were in a time machine, no one would be arguing over small blocks...didn't everyone in the late 60's and early 70's drool over the big blocks? This conversation would potentially be non-existant, unless you were in Smokey Yunick's garage...look how far we've come in 30 years...same horsepower out of smaller engines...
a friend of mine has a 37 ford coupe with a 307. he's had it 27 years. when he said it had it 307 i immediately replied why do you have that POS in their. he told me i didnt have a frigging clue and i never brought it up again.
Different rod lengths? Different piston heights? How in the hell could an engine built that out of balance keep from shaking itself to pieces?
uh...you'd have it balanced! it would just require different bob weights for the different piston/rod combos when the shop balances it.
I think it all boils down to who has the bigger johnson rod stuck in there canuter valve here. some one get me some number 5 buble leval fluid i need to go check the deck height of my 305 piston in my 350 head cause u cant fuck with 6.2:1 compression ratio bitches now quite your bitching.... Tp get what ever engine you want thats the great things about hot rods and kustoms you can build them how ever YOU want there is no WRONG way to do it.
Unfortunately, that's not quite true. When it comes to building engines there are a few RULES that must be addressed. Failure to do so gives you a very expensive pile of cast iron, steel, and aluminum. Frank
tpost,when you finally get thru wading thru the shit-talk, just build the 305 for torque.bigger ain't always better. i don't think you want a rpm motor anyway. i PERSONALLY wouldn't waste the $$ on a 305 but that being said, i put one in my 50 gmc cuz it came with the 79 monte that i gave 50 bucks for. i used the subframe,brake booster, eng+trans, throttle pedal, and abunch of other shit...
Well, your reading comprehension skills have gone South as well, I see. I never said anything about different rod lengths, you dope! 305s, 307s and 350s use a 5.7" rod, and so will my motor. Some people suggested using a 6.0" or other rods to restore compression height, but I'm not worried about that, unlike you. The header design was nothing too wild, just a variation of what seemed to work so well on an old bracket car. Pistons are stock 305 pistons...you know...those expensive ones that price 305 rebuilds right into the stratosphere? I know it costs a small fortune to rebuild a 305 compared to the 350, and that $26 difference is going to be staggering, but I will rise above, Brother! I joked earlier about different bore sizes and rubber connecting rods to illustrate just how far off you are with your recollection of my intended plan...but I know you tend to blur the facts on a regular basis and mix things up...never letting anything like the TRUTH stand between you and a good shit-stirring session, but anyone can read what I outlined before and see what I was talking about. Yes, Glen DID help me out...more than you know, but he did so because he's a good, stand-up guy. I didn't "drag him into" my project, he offered his help as a decent HAMBer and fellow car guy. You could learn something from guys like him, rather than dropping names and trying to drag other people into your childish little crusade against me and anyone else you deem as being beneath your lofty self-image. There's only ONE person on this board that you respect? (Your words) I don't believe it...first you gotta have a measure of self respect before you can respect anyone else, and I don't think you're there yet. (Don't confuse a childish ego with self respect!) But, aren't we all works in progress? Maybe there's still time for you to work your issues out? Anyway...back on topic here. The guy that started this thread got his information and seems to be well on his way with a solid game plan that will yield him exactly what he's looking for in a mild street small block for his 50. I've seen a tired, low compression 305 run damn strong in a 50 Chevy myself, so I'm confident Todd will be happy with his motor, too! In summary, 305s are good motors...certainly as good or as bad as any other small block Chevy, and if you can overcome that $26 hurdle involved in rebuilding one over a 350, you can wind up with a decent running motor that will prove reliable for years to come. And the best part? Nobody...not even a few high-and-mighty "experts" can tell the difference from the driver's or passenger's seat if you don't tell 'em! (Well, I'm sure Frank could distinguish the subtle nuances of the exhaust notes between a 305 and a 350 and SMELL the extra 4,000 horsepower that those 45 cubes give you with the 350...but the rest of us mere mortals never could!)
Senor Bugman, I respectfully disagree. We're not talking about stockers! If I got my 350 back from the machine shop, put it together, and it only got 195hp @ 4400rpm, I'd go home crying and start buying crate engines. Let's do a little extrapolation here. Suppose the 350 is making the magic 1 hp per cubic inch, which is 179% of the "factory" 195hp. Multiply the 25hp difference between the factory 305 and 350 by 1.79, and you get.... ......drumroll please..... 45hp! Lookit that! And to get in the spirit of this thread, I'm going to call you a jerk and imply that your penis is smaller than mine. Ed
The good 305 castings flow just as much air as the 350 castings. They flow about 190cfm @ 28" with the 1.84 intake valve. Normal stock 350 heads flow about the same. Only the factory 327/350 hipo heads flow more (but in some cases, quite a bit more - up to 25cfm!). Port the 305 castings out with decent sized valves and they will flow about 230-240@ 28". The highest I have seen is 238 on the intake side. The good castings are the 416 and 601 castings. 416 are 58cc and 601's are 55cc chambers roughly. I have a nice set that I started porting. The intake side is nearly done, but I need to finish the exhaust. For just the cost of my time they should be killers or a cheap hot street engine.
My old 72 Chevelle was running a constant mid 13's with a very mild 350. 9 to 1 comp, 650 Holley, Performer Intake, bone stock junkyard vortec heads (they did have a valve job and the springs were clearanced), a shift kit in the trans and 3.08 rear gears. The only real "performance" parts in the car were an Isky Mega-280, 1.6 rockers and an Eaton posi. That motor cost me less then $1000 to build.
You can fit 2.02/1.60's in them if you open up the chambers a little. 1.94/1.50's drop right in. The good 305 heads are a very underated head.
That pretty much backs up what I've read from the dirt racers. A 416 with a 1.94/1.60 valve job and some mild porting sounds like it could be a killer deal for a poor-boy street 350. The valves from some old smogger heads, a home port cleanup and then a basic 3 angle valve job and you have heads comparable to the old double humps. I have ONE 416 head and a set of 1.94 smoggers sitting on the shelf! LoL What vehicles might 416's be found on? Camaros and Monte Carlo SS I guess, but I'm reasonably sure this head I have was stock on a carbed truck engine! It was in an an old Land Cruiser V8 I scrapped and the other head was a 8__? resting on a graphite gasket. The 416 was on an OEM steel gasket and was obviously original. The guy I bought it from said the PO told him it was a truck 305 he had installed 2 years earlier. Gonna have to hit the scrap yard I guess...
Bill...check mid-80s Chevy/GMC pickups with the 4v 305 for the 416 head castings. I believe it's the same head (or a variation thereof) used on the L69 305 4v engines found in F-body cars of the mid 80s, too. Plenty of them around, and dirt cheap or free if you look hard enough.
Hmmmm...That would fit well with the engine I pulled...it was a 4 bbl and had the regular rear seal. Sure is easy to find an old Chevy pickup around here compared to a Monte SS!!! LoL Think I'll put the word out to see if any of the locals have one out back for parts. Thanks.
That's the motor in DIRTYT's 50 Chevy right now...an 85 305 4v out of a half ton GMC pickup. He's since swapped out the heads for 70s era 350 ones (the valve guides were shot on his stock ones), but unfortunately his old heads went to the scrapper! If you don't find anything locally, give me a shout, stuff like that is dime a dozen here...since nobody wants anything even remotely related to a lowly 305! Ha Ha!!
Exactly...This is all that needs to be said. If it'll do what you want, fine. If you want more (down the road a bit, when you can afford more) build a 383 or whatever. It's not like a mild '50 Chevy could do much with lots of power anyway- the rest of the car is hardly up to the task... ~Scotch~
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