Thread: Which one's better,327 or 350?

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HI,guys,please forgive me if this question has been asked before.I know the bigger the better is not always the best when it comes to engines.I have a 327 sitting in my garage for a future project.It's the one with the double hump heads.I beleive it has a forged crank.Is it better than a 350?

I think it depends entirely on what you're planning on building, but I'm sure you'll get some varied opinions on the subject.

You want a reving motor go for the 327, want a torquey motor that pulls down low and in the midrangea 350 does the trick. That particulr 327 that you've got, if it has the original heads on the original block could be a rare complete motor all you have to do is get the year of casting and the vin number stamped on the I.D. plate and decipher in a hollander manual.

the 327 with the small crank is fast

i like the 327, you can build low end torque into a 327 just like you can with any engine.

Cd

Originally posted by aftershock2222
HI,guys,please forgive me if this question has been asked before.I know the bigger the better is not always the best when it comes to engines.I have a 327 sitting in my garage for a future project.It's the one with the double hump heads.I beleive it has a forged crank.Is it better than a 350?

I love my 327 I got it from a 63 vette with the camel hump heads about 300 hp. It doesn't like low end but sure screams above 3000 rpm, never really cranked it out above 5500. 67 and 68 327 came with the large journal crank. I put it in my light weight 49 F1 pu. with a 700r4 and 3.50 9" 30 in tires, would be better with 3.73 gears or even 4.10 . Its differant which is nice but I would believe a 350 is an all around better choice. Ed ke6bnl

my self i like a 327 and i have heard alot of good things abouht them and they uesd too put them in simies before they came out with desiels

Originally posted by TRUCKGUY
my self i like a 327 and i have heard alot of good things abouht them and they uesd too put them in simies before they came out with desiels

They put 427's in semi's, the SB 327 just don't have the low end like the BB 427 and the semi's need that low end torque.

Given equal quality parts, there are few substitutes for cubic inches . . .

yea i know that they put 427's in simies but my other uncle drove a 66 chevy simie back in the sixtes for a while

Always been a fan of the 327, mainly because that's what my old man always used. back in his day they were the only engine to have.

I like the best of both worlds on this one.327 rotating assy. in the 350 block bored 40 over.
The 327 rods are longer than the 350 and the crank stroke is shorter, which means the crossover points are advanced the 350 stroke, as the cyl. reaches TDC on the 350 the rod, and crank are lined-up straight. On the 327, the pin is higher up in the cap- so that when it gets to TDC the rod is past the cranks pos. of straight inline.
So which one creates the most torque? The 327. You put that rotating assy. into a larger bore 350, and you got a REAL stroker.

Richard,
Your right I did say that the rod was longer, and it's not- the stroke is different because of the pin placement in the cap...I just get excited when you want to talk about the differance between the 327 & the 350, and the combining of the two.
I don't want to give out mis-information here so thanks for the catch.
I just wish that you weren't so close minded to the can-am style of engine building....the possibilities are endless.

Richard,
I am not going to turn this into a debate. If you will consider the crank position at crossover for both engines, as well as how this affects momentum, and just apply the physics that you keep spouting about - you may discover why the 327 twist's up so much quicker- therefore putting you into your power curve faster.
This man asked a question- and I gave my opinion.
Thanks again for the catch on the rod slip.

Just to throw out some factory specs from 1967 (327) and 1970 (350).

L79 327 ci 350hp @ 5800 360ft/lb @ 3600

L46 350 ci 350hp @ 5600 380ft/lb @ 3600

LT1 350 ci 370hp @ 6000 380ft/lb @ 4800

Granted, these are gross numbers rather than net, but they are comparative to one another. All three of these are single 4 barrel engines. And small block hp junkies love them as factory icons of a wonderful period.