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Old 02-05-2006, 04:07 PM
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305 Heads With 601 Casting Help Me

I Found A Set Of 601 Casting 305 Heads And Waswondering If I Could Use Them In Sted Of 416 Casting That Everyone Has Told Me To Use To Bring My Compression Up Please Help

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Last edited by 78novafan; 02-05-2006 at 05:12 PM.
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Old 02-05-2006, 04:11 PM
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601's are the other HO casting I couldn't recall. Basically the same as the 416's.
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Old 02-05-2006, 04:37 PM
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I wouldn't use them. If you want a good set of heads, find a set of good clean vortec cores at a salvage yard. You'll pay $200-$250.00 bucks for a a good pair.

Clean them up and have them magged. Put new seals on them, change the springs and you'll have much better horsepower with them vs. 601 heads.
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Old 02-05-2006, 05:16 PM
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But I Have Been Told That Bang For The Buck Seens I Am On A Tight Budget That The 601/416 Would Be The Cheapest Way And Get The Best Power For The Dollar
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Old 02-05-2006, 05:38 PM
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Go get yourself a Goodwrench crate 350. Use your existing intake, headers, carb, etc... and bolt them to the 350. Drop it in and go. Way more power than a 307 or 305 would have and the engine would be brand new. I think they're rated at 250-260 hp and you can run regular gas all day long with them.
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Old 02-05-2006, 06:00 PM
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Thanks For The Idea But No Im Staying With A 307 Because Every Body Goes And Gets A 350 And Bolt Some Stuf On And Goes And I Want To Be Different So I Will Stay Witha 307 And Make Just As Much Power As A 350
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Old 02-05-2006, 06:30 PM
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Quote:
Originally Posted by 78novafan
I Will Stay Witha 307 And Make Just As Much Power As A 350
Back the truck up! I don't know where you got that idea but that ain't gonna happen. It's fine to fix up what you have but don't expect it to be something it won't. A 307 will respond well to mods but dollar for dollar a 350 with the same mods is going to kick it's butt in fact the 350 won't need as many mods. That's just the cold harsh light of reality.
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Old 02-05-2006, 08:30 PM
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The 601 is a truck head it has really small chambers maybe too small because theyre tight around the valves it shrouds them pretty bad.
416 is the so called HO head has the same 1.84 and 1.5 valves as 601 casting but larger chamber, actually same chamber they used on all early 305 heads.

Power wise theyre probably the about same, one gives you a little more compression and the other flows a little better.
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Old 02-05-2006, 08:43 PM
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"So I Will Stay Witha 307 And Make Just As Much Power As A 350"

No you won't.

The 601 heads flow about 165 cfm @ 0.500". Pretty awful.
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Old 02-05-2006, 08:59 PM
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Quote:
Originally Posted by techinspector1
"So I Will Stay Witha 307 And Make Just As Much Power As A 350"

No you won't.

The 601 heads flow about 165 cfm @ 0.500". Pretty awful.
what do stock 416 heads flow ?
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Old 02-05-2006, 09:09 PM
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Quote:
Originally Posted by 78novafan
Im Staying With A 307 Because Every Body Goes And Gets A 350 And Bolt Some Stuf On And Goes
There is a reason people always go with a 350 (even 383s and 400s). 50-100 more cubes makes a huge difference. All else being the same those bigger engines are going to make 50 to 75 or more hp than a 305 or 307 would just because of their size. And the best part....they are a drop in deal. "Plug n play" at its best.
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Old 02-05-2006, 09:14 PM
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Quote:
Originally Posted by DHMag
what do stock 416 heads flow ?
Sorry, I have no data on them, probably just about as awful.
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Old 02-05-2006, 09:41 PM
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Quote:
Originally Posted by techinspector1
Sorry, I have no data on them, probably just about as awful.
The 416's have very similar ports to the old 461 and 462 Double Hump heads and almost identical port volume. I can't find it right now but I had an article with flow bench numbers that showed they flowed about the same as the old 461/462's with 1.94/1.50 valves but actually performed a little better at lower engine speeds, they had better mixture velocity. For a mild small displacement street engine like a 305/307 they are not "awful". For a 350 or larger performance engine, yeah they suck but a 307 just can't pump as much air as a 350 so why put heads on it that it can't use? He's on a tight budget, 416's can usually be picked up CHEAP and as "awful" as they might be compared to Vortec's or aftermarket heads they are still decades better than the stock 307 "door stops". Having said all that he would still be money ahead ditching the 307 for a 350 but if he has his heart set on the 307 then 305 HO heads will work well with a mild cam.
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Old 02-07-2006, 12:08 PM
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thank u hippie u understand that i want a small small block just so when im out on the street and a 350 comes up beside me and wants some and gets put in his place and he ask me what is that i can say 307 with a little done
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Old 02-07-2006, 09:26 PM
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Quote:
Originally Posted by 78novafan
thank u hippie u understand that i want a small small block just so when im out on the street and a 350 comes up beside me and wants some and gets put in his place and he ask me what is that i can say 307 with a little done
Yeah I understand, been there myself a time or two and if I had a good 307 short block I'd probably build one too even though I know better. I see going against the crowd as standing up for my convictions, my wife says I'm just being bull headed and contrary. My wife's probably right.
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