fully built engine or 6-bolt swap?

[roni-wan]

hello friends i am about to put some money on my engine but i am concerned about crankwalk my plans are to have a fully built 7 bolt engine with eagle forged crank, arp hardware, eagle rods and wiseco pistons with acl race rod and main bearins so my doubt is how safe am i from CW if i do this? i don´t want my engine to walk after investing that modey on it in the other side maybe instead of doing this i cna use that money on a 6 bolt swap so i am CW free

doea anyone have any experience or knowledge of a built engine crankwalking?

thanks for helping

 

[b00stedtalon2]

I have seen people build 7 bolts and not have them walk. I've seen them walk the next month. If your going to be dumping alot of money into a motor, might as well toss an extra $60 for a bare 6 bolt block and build that

 

[1gcrazy]

http://www.magnusmotorsports.com/tech/crankwalk.htm

Build the 7 bolt and dont worry about crankwalk. Just make sure you read that link very closely.

 

[roni-wan]

i still have some doubts it would be a tragedy to put that money into the engine just to break due to CW, maybe i can do both things swap then a fully built engine if i find a cheap 6bolt turbo engine by the way does anyone knows where can i buy one?

 

[JeanDSM]

http://www.magnusmotorsports.com/tech/crankwalk.htm

Build the 7 bolt and dont worry about crankwalk. Just make sure you read that link very closely.

what special things is needed to do so the 7 bolt will not walk??????

 

[Allboost429]

If I was you I would built a 6 bolt. I had alot of money in my 7 bolt and I had bad luck it walked in about eight months. But then again my friend has a fully built 7 bolt from the block up and it is running strong with no problems. I think it will be smart just to eliminate the whole C.W. thats what I did.

 

[GSX Eclipse]

I have seen people build 7 bolts and not have them walk. I've seen them walk the next month. If your going to be dumping alot of money into a motor, might as well toss an extra $60 for a bare 6 bolt block and build that

Not to steal the thread but what your saying is if you have a 7-bolt block replaced with a 6-bolt block it is less likely to crankwalk reason being because 6-bolt blocks were not machined out of spec, right?

 

[Allboost429]

yes

 

[csgsx23]

I'd stick with your 7 bolt and have it rebuilt. I had mine rebuilt by JAM with weisco's and eagle's and she runs strong with absolutely no CW. But in the end it's truly up to what you want to do.

 

[FlatBlackTerror]

A 6 bolt might give you peace of mind but if you do it right then a 7 bolt will be fine

 

[GSX Eclipse]

yes

, Was this a response to me?

 

[roni-wan]

I'd stick with your 7 bolt and have it rebuilt. I had mine rebuilt by JAM with weisco's and eagle's and she runs strong with absolutely no CW. But in the end it's truly up to what you want to do.

thats my dilemma i am gon a put a lot of money on my car to get about 450whp + nitrous + co2

how much power are u handling with your built 7 bolt?

 

[t25fury]

Not to steal the thread but what your saying is if you have a 7-bolt block replaced with a 6-bolt block it is less likely to crankwalk reason being because 6-bolt blocks were not machined out of spec, right?

There was never a definite answer as to why the 2g blocks were more prone to cw since Diamond Star Motors never acknowledged or owned up to the numerous cases.Since this was not considered a safety issue there was never a recall issued.There were many theories as to why a 2g cw,out of spec machining being one of them.Magnus motorsports by far having probably the best answer in my opinion,which is why they offer built 7 bolt engines.Technically the 2g block is stronger since dsm added a block girdle but the connecting rods are its weak point(compared to the 1g big rods).