7 bolt or 6 bolt options

[williambogner]

Alrite guys, could use the best input from the specialists more than anything on this. I have a 7 bolt in my 2g obv. and im debating whether to swap it with a 6 bolt or not. I have a 1g head and 1g intake mani on it. I plan on making it rip like 400-600 hp and dont want the crank walking on mee. I dont want to go out and spend a lot of money on a 6 bolt and have that built. Is there a way to put a 6 bolt crank on my 7 bolt motor and build my 7 bolt now?? lmkk

 

[LiquidX]

If your 7 bolt is fine, just use it until it goes *if* it does. Just because you have a 7 bolt doesn't mean it'll walk. If you plan on making numbers, just start building the 6 bolt now and have it aside for when/if you need to drop it in.

You have a 1g head and IM on what, the 6 or 7 bolt? Hopefully it's not the 7 bolt...
Personally you would be better off using the 2g head and an Evo3/RVR IM on the 6 bolt

 

[williambogner]

Well i have the car aside now and dont wanna spend a lot of money. Should i bite the bullet and just get a 6 bolt and build it or build my 7 bolt with a 6 bolt crank. i plan on "making numbers"

 

[GSXSixteenG]

Its not the cranks problem, its the thrust bearing. I believe the 97's forward had the modified thrust bearing which reduces/eliminates the chances of crankwalk. A 400-600hp goal is a wide range to be shooting for.

 

[gsxpj6428]

if you really want to hit the 500+ mark you really do want to spend the money and build a 6-bolt up.

1. over 400 hp and you want to do internals anyways

2. building up a 6-bolt will give you both a solid engine and rid yourself of the crankwalk issue.

how many miles on the 7 bolt?

 

[JEFFREYCASTGSX]

Its not the cranks problem, its the thrust bearing. I believe the 97's forward had the modified thrust bearing which reduces/eliminates the chances of crankwalk. A 400-600hp goal is a wide range to be shooting for.

And the oil squirters design/location.

 

[williambogner]

the 7 bolt has 116,000 and it runs like a champ. I just dont want to be doing a lot of modding to make this swap work like the Crank sensor etc. Any idea how much i could get for my turn key motor?

 

[tenn-gsx]

Crankwalk is so OVER RATED! Its likely that the reason that you hear about 7 bolts walking more than 6 bolts is 2 things. First there is a stigma attached to 7bolts. Second there are MANY more 7 bolt blocks out there than there are 6 bolt blocks.

 

[JEFFREYCASTGSX]

Kiggly makes a kit for the crank sensor, and theres also a wiring harness that makes it all plug and play. You could also block off your oil squirters and not worry about anything(like c-walk).