Lets talk blocks......

[JETFAST]

how hard are you pushing your motor Francisco?

[FRANCISCO308]

how hard are you pushing your motor Francisco?

Not to hard.. I shift around 6000rpm

the tune is perfect. I just don't push the motor that much

[JETFAST]

how much boost at 6000rpm?

[bigminz]

That's a lot of horsepower and cylinder pressure for that block. It does sound as if it has some detonation going on if it ate the bearings after six passes.

[STRONGNUFF]

That's a lot of horsepower and cylinder pressure for that block. It does sound as if it has some detonation going on if it ate the bearings after six passes.

I think 8100 rpms and some oil starvation might be a contributing factor

[jyro]

cap walk?

check the parting ends on the caps for signs of cap walk. You could be elongating the main bolts enough to lose oil to the mains. The rod bearings would show that too. detonation is a monster

[turbostang]

Was the thrust knocked out too? If it was, that's often the beginning catalyst for knocking out the rest of the bearings.

[blk93cpe]

It was d.s.s piston, eagle rods and stock crank, block F4TE. I have his old pistons and rods

I traded a Walter p99 .40 for the rotating assembly, lifts, and the Anderson cam (b-451) and bought the block for $150 already machined and had it assembled and balanced for $425. It ran over a 100 passes that year and a best of 5.42 @ 128 with a 75mm s400. That was the best damn cheap motor I have ever see !!!

Btw my current 351 I have over double maybe triple in it and it won't run near what that setup ran.

[bigshoe]

Was the thrust knocked out too? If it was, that's often the beginning catalyst for knocking out the rest of the bearings.

That's what I was thinking too.

[jason07]

I traded a Walter p99 .40 for the rotating assembly, lifts, and the Anderson cam (b-451) and bought the block for $150 already machined and had it assembled and balanced for $425. It ran over a 100 passes that year and a best of 5.42 @ 128 with a 75mm s400. That was the best damn cheap motor I have ever see !!!

Btw my current 351 I have over double maybe triple in it and it won't run near what that setup ran.

Lol that's because you don't have the heads or the turbo to do it. It could if you had the same ingredients. Don't sell the block short.

[aggie97]

8100 on windsor bearings will toast them quick...too much bearing surface going too fast per revolution. Sounds like the 8100 was an accident but if you are going to spin it like that, get a block with cleveland mains. Then you can spin the shit out of it!

[jason07]

edit...he used a 351 block out of a early to mid 90's F150, cargo van etc (F4TE)

[FRANCISCO308]

I traded a Walter p99 .40 for the rotating assembly, lifts, and the Anderson cam (b-451) and bought the block for $150 already machined and had it assembled and balanced for $425. It ran over a 100 passes that year and a best of 5.42 @ 128 with a 75mm s400. That was the best damn cheap motor I have ever see !!!

Btw my current 351 I have over double maybe triple in it and it won't run near what that setup ran.

Shit! that's some serious MPH.. What was the 60ft?

[blk93cpe]

Shit! that's some serious MPH.. What was the 60ft?

1.30 on radials (it may have been 1.27) I will find the time slip tonight

[blk93cpe]

Lol that's because you don't have the heads or the turbo to do it. It could if you had the same ingredients. Don't sell the block short.

I am not selling the block short. I just haven't see another setup run near those times.

Hell I don't know if your motor that has all the good stuff will even run those times!!