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Author Topic:   302 vs 351
stewaj01
Dirt Roller

Total posts: 13
posted August 11, 2004 10:52 AM  
I was planning on running a 302 stroked to 347 to save weight but the new track rules do not allow stroker engines. My question is can a 302 run with a chevy 350 and if so what is the setup or do I have to go to a 351w?

supwitchew
Dirt Maniac

Total posts: 122
posted August 11, 2004 11:29 AM  
Unless your track is really dry slick, a 302 won't usually keep up. I would go with a 351W.

Special Ed
Dirt Full Roller

Total posts: 63
posted August 11, 2004 05:42 PM  
I would definately go with the 351.

351c rules
Dirt Roller

Total posts: 18
posted August 11, 2004 09:33 PM  
why can't you stroke it. your not going over the cid they set. around here you can't use a 302 based motor. they are illegal. you have to use a 351. i've used both in stock form and the 302 i felt was better

stewaj01
Dirt Roller

Total posts: 13
posted August 12, 2004 09:25 AM  
351c rules,
the rules say stock crank and connecting rod length

Raz_900
Dirt Forum Champ
Total posts: 635
posted August 12, 2004 08:32 PM  
I'd run a 351C with Aussie 2 bbl heads. Or, stuff the Aussie heads on a 351W end. Stock Windsor heads **** bigtime.

akadirtracer7
Dirt Freak

Total posts: 217
posted August 13, 2004 06:22 AM  
351c Whats the reasoning behind the no 302 rule? what restiction do they have on gm motors you can use.problably none right. I been running a 347 and put it in a limited late model and its been doing pretty good.Finished 2nd last week.with the weight difference in the two 351w compared to 302 I have 56% rear weight with no added weight to the rear.

dirt poor racing
Dirt Full Roller

Total posts: 75
posted August 15, 2004 11:30 AM  
we run a 302 only ford in our class everyone said 302 wouldn't keep up 4 feature wins 7 seconds 2 thirds you get the picture. we run it in a 80 t-bird.

351c rules
Dirt Roller

Total posts: 18
posted August 15, 2004 12:31 PM  
quote:
Originally posted by akadirtracer7:
351c Whats the reasoning behind the no 302 rule? what restiction do they have on gm motors you can use.problably none right. I been running a 347 and put it in a limited late model and its been doing pretty good.Finished 2nd last week.with the weight difference in the two 351w compared to 302 I have 56% rear weight with no added weight to the rear.

because the the rotating weight is alot less than chevy. a stock crank is 38 lbs plus they are light as a whole. those 302's rev quick. you are right about the chevys NO RESTRICTIONS

[This message has been edited by 351c rules (edited August 15, 2004).]

racer17j
Dirt Forum Champ
Total posts: 5390
posted August 15, 2004 12:54 PM  
quote:
Originally posted by racer17j:
there are alot of tracks that don't alow stroked combo's reguardless of make it's to keep cost down.if you could get it out of a junkyard they would let you run it but there is noway to run one without spending money over basic cleanup machine work

these tracks aren't saving you anything. cast stroker kits are cheap and stronger than stock


racer17j
Dirt Forum Champ
Total posts: 5390
posted August 15, 2004 06:40 PM  
I have decided to go with the 302 and was wondering what I will need to do with it to make it competitive. I am still thinking on maybe making it a 347 and hoping that the tech staff do not find out. So if anybody has a setup that they found to really work let me know. The track I will be running on is a medium banked 3/8 mile and the car is a 1984 Crown Victoria with a 1994 T-bird body.

I also want to thank all of you for your comments. This will be my first car and I am really grateful for all the information that you have given and continue to give daily.

Special Ed
Dirt Full Roller

Total posts: 63
posted August 23, 2004 05:17 PM  
I hope you are able to get by with the 347. If you have to wind up with a straight up 302 I think you will be wishing for a 351. Good Luck.

pmiracing
Dirt Full Roller

Total posts: 44
posted August 29, 2004 10:21 AM  
Where is the best place to get a 347 stroker kit?(crank, rods, pistons)I see a lot of variation in prices in the cast crank kits. the cheapest I have found is about 5 to 6 hundred bucks.

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