7 bolt block modifications

[skizzo81]

OK i am rebuilding my 7 bolt engine with 150,000 miles. what mods should be done to the block to have it be the best it can be? i have wiseco forge alum pistons and eagle forged rods with acl bearings and i am using the stock crank.

please any tips would be awesome. thx

 

[skizzo81]

Yes i agree. That is why i am replacing everything i have not already done. like the oil pump and balance shaft kit and will also be using the right stuff on every seal possible.

 

[sk8dudety]

check out this link by magnus motorsports, Magnus Motorsports » Crankwalk Theory

it has some thoughts on why the crankwalk was such a problem with these blocks

 

[Chuck981]

check out this link by magnus motorsports, Magnus Motorsports » Crankwalk Theory

it has some thoughts on why the crankwalk was such a problem with these blocks

Thanks so much for putting that link up.

 

[skizzo81]

so was it ever proven by a group of builders that removing the squirters sloved the problem?

 

[Gamble97]

so was it ever proven by a group of builders that removing the squirters sloved the problem?

If your talking about crankwalk no it was never solved and probably never will be.

 

[skizzo81]

did the crankwalk only happen on built motors?

 

[2slow4now]

No to answer your question. It happened soon enough in the production that there was a recall. I had a 7 bolt that was bone stock and adult owned and driven and at 140k it walked. Just do some research on the subject and decide from there. All engines could walk but if there was one thing I would do to help prevent it would be to eliminate the neutral safety switch. That would avoid pressure on the thrust bearing at startup.

 

[1GenDSM]

did the crankwalk only happen on built motors?

Type "crankwalk" into the search bar at the top of the screen. It's been discussed plenty around here. If you have any questions about it, then it's because you haven't bothered looking for the answers.

 

[skizzo81]

Type "crankwalk" into the search bar at the top of the screen. It's been discussed plenty around here. If you have any questions about it, then it's because you haven't bothered looking for the answers.

i have not bothered looking because people are talking about it in this discussion. I have not asked anything other than what someone else commented. I just asked for clarification on a previous post.

 

[Pauly D]

Bs elimination and arp head studs a mls head gasket wouldn't hurt but only if the head and block are milled.