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  #1 (permalink)  
Old 06-30-2013, 09:31 PM
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Opinion on engine choice for build

Going in a 31 olds coupe

blown SBF

or

New style hemi

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Old 06-30-2013, 09:39 PM
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the stroker crate hemi would be nice
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Old 06-30-2013, 09:47 PM
How fast is fast enough?
 
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Two very different engines, why those two options? For an olds car I say an olds engine would be nice.
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Old 06-30-2013, 10:09 PM
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Hemi, Gen III
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Old 07-01-2013, 06:45 AM
How fast is fast enough?
 
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The hemi is a much better design, stronger, better induction, valve train, etc.

BUT when you add in boost the SBF will have more power. It all depends on what you want, they're two vastly different choices and I'm not sure why you would even begin to compare the two options.
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Old 07-01-2013, 07:41 AM
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Quote:
Originally Posted by ap72 View Post
Two very different engines, why those two options? For an olds car I say an olds engine would be nice.
I can see how this would lack a pattern or theme at first sight.

I want a small block. I want the distributor in front or trigger style like the new style Hemi. I don't like Chevy's although I like the LS engines however the LS2's are simply not around used in my area. Every rod I see is 90% of the time a SBC, boring.. The Hemi's are very accessible and the aftermarket support is there. They will bolt to 727 auto's with no issue and I am a Mopar guy so I have this stuff. I like fords and I have a blown SBF at my fingertips cheap.

The olds engine is big and expensive to build. I never thought they were the prettiest of engines and the distributor is in the rear.

The only other options I considered were the 4.6 twin cam fords or a big block Chrysler (because again I have these). but the twin cams are pricey and take some work to get power from and I don't really want a big block in it. I want light, small and quick.
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Old 07-01-2013, 08:49 AM
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In my experience big blocks are quick, just heavier.
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Old 07-01-2013, 09:15 AM
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Quote:
Originally Posted by 455olds View Post
In my experience big blocks are quick, just heavier.
A 455 Olds weighs about 650 lbs. Swap to an aluminum intake and you're within spitting distance of a belly-button SBC. Sorry, that "heavier" myth is wrong. On the other hand, 500 ft-lbs of torque stock is nice.
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Old 07-01-2013, 09:20 AM
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Quote:
Originally Posted by roccodart446 View Post
The olds engine is big and expensive to build. I never thought they were the prettiest of engines and the distributor is in the rear.
Yeah, I can see where the Chrysler is MUCH more attactive...



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Old 07-01-2013, 10:08 AM
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Quote:
Originally Posted by 455olds View Post
In my experience big blocks are quick, just heavier.
Quote:
Originally Posted by joe_padavano View Post
A 455 Olds weighs about 650 lbs. Swap to an aluminum intake and you're within spitting distance of a belly-button SBC. Sorry, that "heavier" myth is wrong. On the other hand, 500 ft-lbs of torque stock is nice.
I have a big block in a 69 dart. I'm aware of the weight difference. However the size difference is also something to think about. I just want a small block.
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Old 07-01-2013, 10:10 AM
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Originally Posted by joe_padavano View Post
Yeah, I can see where the Chrysler is MUCH more attactive...



I guess beauty is in the eye of the beholder. If I did go big block i'd go ford or MOpar. Probably mopar as I have big blocks at my disposal.
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Old 07-01-2013, 10:23 AM
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Quote:
The only other options I considered were the 4.6 twin cam fords...
If you think a cammer 4.6 is "small" think again. They're as wide as the freaking Mississippi! lol

An early Hemi would be my choice as far as appearance/period correctness (for a Gasser), an LSx for availability (here, anyway) and power, Olds for the "purists". I'd almost be afraid a 302- even w/a blower on top- would get lost in that cavernous engine bay. If it were to be a Ford I'd choose an FE or maybe a 385. I could almost see stuffing a built crate Coyote in it, if it had to be a cammer FoMoCo.

Last edited by cobalt327; 07-01-2013 at 10:39 AM.
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Old 07-01-2013, 10:58 AM
How fast is fast enough?
 
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turbo Zetec 2.0L. You can almost fit one of those in your lap. When modified, 400hp is fairly reasonable.


Seriously though, of your two options the Hemi will be the easiest to drive but look WAY out of place. The Ford will look more correct and have more power but not run as well as the Hemi for normal driving duties.
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Old 07-01-2013, 12:13 PM
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Quote:
Originally Posted by cobalt327 View Post
If you think a cammer 4.6 is "small" think again. They're as wide as the freaking Mississippi! lol

An early Hemi would be my choice as far as appearance/period correctness (for a Gasser), an LSx for availability (here, anyway) and power, Olds for the "purists". I'd almost be afraid a 302- even w/a blower on top- would get lost in that cavernous engine bay. If it were to be a Ford I'd choose an FE or maybe a 385. I could almost see stuffing a built crate Coyote in it, if it had to be a cammer FoMoCo.
While wider the cammer is all aluminum baby.

Quote:
Originally Posted by ap72 View Post
turbo Zetec 2.0L. You can almost fit one of those in your lap. When modified, 400hp is fairly reasonable.


Seriously though, of your two options the Hemi will be the easiest to drive but look WAY out of place. The Ford will look more correct and have more power but not run as well as the Hemi for normal driving duties.
I like the hemi and the 351. Just to throw it out there the hemi 5.7 when stripped down and dressed up (maybe ever with a carb) the looks change drasiclyh over the one pictures above. Think this over in terms of traditional rodding. It's a frankenstein type of deal. I think it would be cool to have a straight axle and a olds (1/3700 ever made) and what's this a fuely 5.7 hemi. Different and functional. FRank llyod wright style...
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Old 07-01-2013, 02:20 PM
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you say you can get the blown ford for cheap. that right their should make up your mind. unless you have lots o cash.
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