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Author Topic:   350 vs. 400 engine
dakotawrench
Dirt Roller

Total posts: 5
posted February 18, 2005 07:56 AM  
I found a good deal on a 400. last year i ran a 350 and turned it about 6000 all year with no problems.does anyone know of any advantages or dis.on running a 400.other than i have to throw another 200 lbs. weight in the car. thanks,

02 Blewbyu
Dirt Full Roller

Total posts: 48
posted February 18, 2005 10:52 AM  
I run a 400 and wouldnt trade if for a 350. Remember there is no substitute for cubic inches. I never have to turn mine over 5400 RPMs which is helping it to live longer.

hobby10k
Dirt Freak

Total posts: 226
posted February 18, 2005 03:49 PM  
throw another 200 lbs in the car???

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dirty58
Dirt Maniac

Total posts: 115
posted February 18, 2005 04:37 PM  
stick with the 350 the extra weight ya add would equlize out save the money

Eljojo
Dirt Forum Champ
Total posts: 968
posted February 18, 2005 07:09 PM  
Throw the 200 lbs in the trunk and the 406 under the hood and DUSTEM!

racer17j
Dirt Forum Champ
Total posts: 5390
posted February 18, 2005 07:16 PM  
How bout a little bit of both? Actually I'd go with the 400, "theres no replacement for displacement!" or something like that. I find it hard to believe that a 400 weighs 200# more!?

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Eljojo
Dirt Forum Champ
Total posts: 968
posted February 19, 2005 05:41 AM  
There was a thread on this forum a couple years back and the poster stated that he'd done an experiment with weight. As he added rear weight and as the car hooked up better his lap times improved. He found that he had added 400 lbs of weight before the lap times began to fall off. I believe that fast cars handle well, no matter what it takes. BTW.his test car was a mini stock!

nautaliner
Dirt Newbie

Total posts: 2
posted February 19, 2005 04:39 PM  
400 does not weigh any more than 350, other than what the few extra ounces the crank may weigh.

theslowguy
Dirt Full Roller

Total posts: 30
posted February 19, 2005 06:42 PM  
I'm betting his rules state if he runs a 400 he has to weigh 200lbs more than the 350 guys.

hobby10k
Dirt Freak

Total posts: 226
posted February 19, 2005 11:46 PM  
Thats what I was wondering what he was talking about, cause a 400 doesn't weight more...

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nailngoracing
Dirt Maniac

Total posts: 170
posted February 20, 2005 02:01 AM  
yeah...or he has to add two hundred pounds to hook up the powerhouse...400!!!!!

sjakes
Dirt Freak

Total posts: 254
posted February 21, 2005 05:41 AM  
quote:
Originally posted by nailngoracing:
yeah...or he has to add two hundred pounds to hook up the powerhouse...400!!!!!

Hey Dakota I totally agree with nailngoracing on this one. For 2 years I ran 350 stuff in my outlaw hobby class, and was afraid of switching to a 406 due to cooling issues. At any rate I made the change last season and had a blast!! I agree you WILL most likely WANT to add weight to the rear to get it to hook up.

The difference for me was a 350 I had to keep wound tight and keep the rpms up all the time to produce. But with the 406, I had to really drive it cautiously due to the power, really had to be patient in the turns not to spin myself out due to the torque difference.

It added a ton of fun!!! In that hobby class I would run nothing but a 406 or something comparable. 350's just weren't enough. This was a class that we could run a somewhat modified 2bbl rochester carb.

Hope this helps!

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[This message has been edited by sjakes (edited February 21, 2005).]

racin78p
Dirt Freak

Total posts: 333
posted February 22, 2005 08:38 AM  
200 pounds is the difference between a BIG block and a small block. And I agree that it is probably a rule that says add 200 if running a 400!

Hey S.J.: Aren't you running stock car this year? Either way buddy, GOOD LUCK and race on!

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racin78p
if it ain't fun, then don't run

wetwolfone
Dirt Full Roller

Total posts: 51
posted February 22, 2005 01:46 PM  
quote:
Originally posted by dakotawrench:
I found a good deal on a 400. last year i ran a 350 and turned it about 6000 all year with no problems.does anyone know of any advantages or dis.on running a 400.other than i have to throw another 200 lbs. weight in the car. thanks,

I think it depends on the rules and your driving style. Around here you see both engines do well.

sjakes
Dirt Freak

Total posts: 254
posted February 24, 2005 05:45 AM  
Racin78, yeah I'm doing the stock car thing now, but the last couple seasons I was in a hobby car, well an outlaw hobby class.

Shawn

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