Club Cobra

Club Cobra (http://www.clubcobra.com/forums/)
-   ALL COBRA TALK (http://www.clubcobra.com/forums/all-cobra-talk/)
-   -   what are the pro's vs con's on engines (http://www.clubcobra.com/forums/all-cobra-talk/128626-what-pros-vs-cons-engines.html)

RodKnock 04-20-2014 03:45 PM

Quote:

Originally Posted by AL427SBF (Post 1296568)
I like the direction this thread is going, neutral pros & cons at 1st, then polite bias toward one or the other, followed by less restraint and finger pointing. We are trending in the right direction, my 2 cents ...

Blown, you have the right idea, maybe bore it out to a 427 and get the best of both worlds?

- Weighs approx 100 lbs less than a 427fe
- Still same dimensions as 351c
- Huge torque increase over factory 351 engine
- Runs cooler than a 427fe
- Vehicle handles and corners better than a 427fe
- Just as fast or faster from 0-60 or 0-100 mph times vs. 427fe
- Runs thousands less in cost to a 427fe
- Won't leak oil like a 427fe
- Period correct displacement in a SBC package
- Performance parts available for all configurations

What's a small block versus big block comparison thread without some oversimplification, untruths and BS?

Yes, small block Ford engines are cheaper to build than big block Ford engines. True.

Performance parts are available for all configurations. Obvious, but true.

At a minimum, Cleveland heads are much larger than Windsor heads. So, they're not the same dimensionally. All big block Fords don't leak. And small blocks leak too. My BBF doesn't leak. And my BBF doesn't have any cooling issues.

The rest, leaks, cooling, handling and performance, will depend on the car, engine builder and your budget.

AL427SBF 04-20-2014 03:45 PM

Quote:

Originally Posted by twin turbo (Post 1296572)
Is the 351C ok to take out to 427? The Windsors usually use an aftermarket block to go that big.

There are 427C's out there, good question for an engine builder.

RodKnock 04-20-2014 03:58 PM

Quote:

Originally Posted by patrickt (Post 1296570)
RodKnock has personally witnessed hoards of spectators weeping at the sight of a small block in a 427 car. And, to a lesser extent, 385 series as well. But, in the end, it's your car... so put a rat motor in there if you want.:cool:

I haven't seen anyone weeping at car shows. But BBF's do lend an air of authenticity when installed in big block bodies, if that stuff matters to you. And from my own personal experience, big block Cobra bodies with big block engines appear to gather more spectators than other Cobras at car shows, if that stuff matters to you.

If authenticity and spectators don't matter to you, but cost does matter, then small block all the way.

blykins 04-20-2014 04:45 PM

Quote:

Originally Posted by AL427SBF (Post 1296590)
There are 427C's out there, good question for an engine builder.

Nope, no 427 Cleveland's....not from a factory 351c block anyway.

AL427SBF 04-20-2014 05:04 PM

Quote:

Originally Posted by blykins (Post 1296601)
Nope, no 427 Cleveland's....not from a factory 351c block anyway.

How about bumping a factory 351w to 427?

Aftermarket 427 SBC
White Performance | STREET ROD ENGINES

blykins 04-20-2014 05:10 PM

Sure, but a Windsor is almost 3/8" taller in the decks.

With a factory bore Windsor, you have to use a 4.100" or 4.170" stroke crank to get 427 inches.

With a factory bore Cleveland, you again would have to use a 4.100" or 4.170" stroke crank, but there's less room for the piston. Due to the crankshaft design, you have to use a 6.200" rod, and in the Cleveland's case, that would make for a 1" compression height piston. Normally, that's not an issue, 400 SBC's use them all the time, but the intake valve location in a Cleveland pretty much hampers that idea.

You could also use a 6" rod, but you have to cut the counterweights on the crankshaft down by almost a 1/4", and that gets super costly....then you have to balance it....and that's super costly again.

AL427SBF 04-20-2014 05:14 PM

Good info, thanks Brent.

RET_COP 04-20-2014 05:31 PM

RodKnock, a bit of a stretch lol yea for sure, he was easy on me, I gave him a 'Like " for that. I did find a FE 390 for $10,000 570HP. I was thinking more of the 427/428. So the FE 390 can be built for about the same price.

Dominik 04-20-2014 10:58 PM

Sorry, thoght it is a 351W which could go easily to 427.

You can get plenty of hp form a 351C... My late buddy in SA only changed cam and pistons and got 500+ The cam was very radical though, not streetable.

For the records, I am a FE fan for originality reasons. Else I prefer 427W.

mnm99 04-21-2014 05:12 AM

1 Attachment(s)
I'm in the same boat. Here is a guy on 460forums that builds only BBF. A 460 with I know it's not top of the line stuff, but a pretty good price. He breaks in the motor and checks for leaks before it's shipped. He uses Procomp heads that he goes through before installing. But then again, I'm looking at buying a NEW Backdraft and this will be a tight fit. Still got to do some research on how hard it is to say change the plugs ext....

Street Hustler Crate Engine: $4995.00

-472 Cubic Inches
-Weiand Stealth intake manifold
-Reconditioned factory CJ connecting rods
-Reconditioned factory crankshaft
-Probe forged pistons
-Speedmaster aluminum heads
-Pent roof aluminum valve covers
-Lunati aluminum Roller Rockers
-Lunati hydraulic flat tappet cam and lifters
-Lunati custom length pushrods
-High Flow Dynamics oil pump
-Choice of front or rear sump oil pan
-545 HP at 5500 rpm, 585 lb/ft at 4000 rpm
-Premium unleaded pump gas compatible
-Test fired, broken in, with 90 day unlimited mileage warranty
-Truck freight $350.00 in the lower 48 states
-Will be delivered as pictured below-email or call for pricing on custom options

Specials

Silversmith 04-21-2014 06:19 AM

Spend a little extra & get rid of those China based Procomp heads. Use instead John Kasse P-51 Heads with the above listed engine build & pick up 100 hp est. A set of P-51 was about 2K to 3K last I checked Also a 385 is a very dependable/strong engine, as long as you keep the rev's less than 6,500rpm.

blown 04-21-2014 08:08 AM

wow this has been a good discussion I'm thinking a 390 stroked to a 440 or maybe a 351 stroked to a 393 they both seem to be very good combo's but I need to measure the fe for fitment that Cleveland:CRY: is tight in their as it is.

patrickt 04-21-2014 10:23 AM

Quote:

Originally Posted by blown (Post 1296683)
wow this has been a good discussion I'm thinking a 390 stroked to a 440...

I think that's a fine choice. Blykins, or any of the other builders around here, can advise you on head tweaking, cam choice, intakes, maybe single or dual quads, and what not. They can turn the horsepower and torque up to the level that appeals to you. You might also just throw a feeler out to see if anyone has a nice webbed 428 block just sitting around that they'd let go for a dime or two. Having the extra bore always helps, but it's not critical for what you'll be doing.

RodKnock 04-21-2014 11:37 AM

Quote:

Originally Posted by patrickt (Post 1296701)
I think that's a fine choice. Blykins, or any of the other builders around here, can advise you on head tweaking, cam choice, intakes, maybe single or dual quads, and what not. They can turn the horsepower and torque up to the level that appeals to you. You might also just throw a feeler out to see if anyone has a nice webbed 428 block just sitting around that they'd let go for a dime or two. Having the extra bore always helps, but it's not critical for what you'll be doing.

Whether your choice is a small block or big block, find a good engine builder and a good installer, if you're not doing the work. Having an experienced professional both building and installing your engine will greatly reduce the probability of headaches like leaks, cooling issues or other sorting maladies.


All times are GMT -7. The time now is 09:21 AM.

Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: