Visit The Dirt Forum for More Information

Author Topic:   327 or 400
ace1
Dirt Roller

Total posts: 15
posted November 24, 2005 06:36 PM  
I need a engine for a new driver coming out of karts into a mod. I have a 327, 60 over and I have 2 400, one 2 bolt and one 4 bolt.
If you were to use one of these which would you go with. The 327 I'm worried about the over bore and I have heard good and bad opinions on the 400 blocks. Or should I hold out for a 350.

brabbit75
Dirt Full Roller

Total posts: 51
posted November 24, 2005 07:11 PM  
I would say try and find a cheap, rebuildable 350. If not, I have a couple of buddies that run 400s that do pretty decent with them. Personally, I would just run a ford...

ace1
Dirt Roller

Total posts: 15
posted November 24, 2005 07:20 PM  
I have thought about a ford but the car is set up for chevy. I guess I could change it.
I dont have much info on fords. It would be fun to run something different than the rest of the field.

racer17j
Dirt Forum Champ
Total posts: 5442
posted November 24, 2005 11:56 PM  
With the 327 he will have to learn to be smooth thru the corners as he will not have the power to make a mistake, the 400 can be put in later when he learns how to be smooth and can control the power thru the corners. the overbore on the 327 should not be a problem, I have one as a backup and it surprise alot of people when it's in the car.

DJR22
Dirt Maniac

Total posts: 126
posted November 25, 2005 01:11 PM  
The torque of the 400 can help you get out of some unusual situations if they arrise. You don't have to turn it as high, so it should also last longer. How big of a track is this for?

------------------
-stand on it-

Ego Racing
Dirt Forum Champ
Total posts: 762
posted November 25, 2005 01:14 PM  
With the cart background the 327 would be a good choice as he is used to using the momentum of the cart. The 400 torquecould add some problems to the learning curve.
We ran a 331 (327+.030) for the same reason. Directly from carts but to Late Models. At the beginning of the year we were faster than with our 14 degree 432ci motor. It was a top 5 car every week, the big motor was FAST when the track was great but it was hard to drive when the track was off.
The 331 turned 7200 rpm the big motor was a little over 8300.

[This message has been edited by Ego Racing (edited November 25, 2005).]

robhbk24
Dirt Freak

Total posts: 375
posted November 25, 2005 03:14 PM  
i love my 331 sm jrnal and wouldn't switch to anything else. we have a weight rule that allows me to run 200lbs lighter than a 355 but with my current car i can't take advantage of it and have the rear #s right so i am weighing the same as the 355s.my new car is being made to get the rear percent right at the lesser weight. i turn 7200 weekly 2 seasons on a motor roughly 20-25 races a year, 20lap mains 5 lap heats.tried a 355 for the first time ever in my dads car early this year when mine wasn't ready and prefered the 331 hands down both cars are fairly similar the main diff being the cui

WPP
Dirt Freak

Total posts: 460
posted November 30, 2005 09:30 PM  
I have been thinking about one of these motors a 3.25 stroke with 6.2 rods in a 350 block with a good set of 230 heads ported with about 14.1 comp how much toque and hosepower could you get and how many rpms

leapinlizard
Dirt Freak

Total posts: 413
posted December 01, 2005 07:05 AM  
230cc heads with that long of rod would make a pooch hound.

Something like 3.26x4.155 with 15:1CR and 200cc heads, 6" rod would be better but with a tendency to two cycle. taking some drivabilty with it.

WPP
Dirt Freak

Total posts: 460
posted December 01, 2005 07:20 AM  
I was also looking at the block issue so you don't think it will work. Is the rods too long.I know this motor will have to be turned pretty hard .Like to here your thoughts thanks for the help

the king
Dirt Full Roller

Total posts: 51
posted December 01, 2005 11:36 AM  
With the smaller bore do you think i may be better off with a smaller head say 220 ported with 6 in rods thank everone for the info

WPP
Dirt Freak

Total posts: 460
posted December 01, 2005 01:00 PM  
Also king what compression did you have thanks

the king
Dirt Full Roller

Total posts: 51
posted December 02, 2005 08:01 AM  
We are around 14-1. The heads have been milled just alittle and they have 2.08 valves. We tried to put my pro heads on them and they would not fit unless we cut the head out. It raised the heads up almost a 1/4'' on rotation with the heads just seting on the motor. The dart heads that are on it are 64cc but have been shaved.

Back to the Archives