68 project

[GR8-68]

Originally Posted by Oregon 1967 GMC

personal preference of course. I think a 2 bolt main block would be just fine. Of course my small block 400 is a two bolt. Don't know how far up the power grid you're going..It looks great, love the meaty rear end.
if you have a second check this out.
http://www.badasscars.com/index.cfm/...d=83/prd83.htm

So for a basic performance engine making 400 HP or so, do you really need to build it on a 4 bolt main block? The answer is; not really. Think of it like this, ALL of the early Vette 327's with 365 and 375 HP were 2 bolt main blocks. There was no such thing as a 4 bolt main 327. How about the infamous 68 "MO" 302 Z/28's which were famous for 8,000 RPM shifts in stock trim! They came stock with 11.25:1 compression and were indeed high winders that saw race track use quite often, and they were also 2 bolt main blocks!

I totally agree with you on all you stated, I think it is more of a heart issue I just thought I had something I didn't have, it is still going in the 68. It is a real good and clean block and has new pistons and does not have to be bored. So it is a money saver right from the git go. I have had a 400 sb in a 73 Nova I once built a 327 in a 1980 Monza Spyder I built and a 283 in a 79 Z28 that was built with no issues so I do not for see any issues here neither.

[Oregon 1967 GMC]

I hear you Larry. 68 is looking nice, keep up the fire brother!

[NC_John]

Originally Posted by GR8-68

I totally agree with you on all you stated, I think it is more of a heart issue I just thought I had something I didn't have, it is still going in the 68. It is a real good and clean block and has new pistons and does not have to be bored. So it is a money saver right from the git go. I have had a 400 sb in a 73 Nova I once built a 327 in a 1980 Monza Spyder I built and a 283 in a 79 Z28 that was built with no issues so I do not for see any issues here neither.

I know exactly how you feel Larry. Having a four bolt block still feels like being a celebrity at cruise night for us old guys- you walk with your head a little higher. When i got my first one i was even telling the little old ladies at church.....

That LS i see in the k-truck is a 6-bolt so just take the two and average them.

[GR8-68]

Originally Posted by NC_John

I know exactly how you feel Larry. Having a four bolt block still feels like being a celebrity at cruise night for us old guys- you walk with your head a little higher. When i got my first one i was even telling the little old ladies at church.....

That LS i see in the k-truck is a 6-bolt so just take the two and average them.

Exactly !!! it just seems that it gives you bragging rights, and just to inform on the direction I am going was a 383 stroker kit, everything I have been reading says it recommends a 4 bolt block to do the stroker motor. What is your guys feelings on that ? I just do not want that oh crap moment later down the road while I am trying to enjoy a cruise with my wife.

I may go with a set of splayed caps, just seems to be cheap insurance for something you are pouring your life savings into.

http://www.ebay.com/itm/331724313895

[MMcMasters]

Larry,

Here is my opinion man. You will be fine with your 2 bolt block, even with the 3.750 stroke. I would use ARP studs instead of the stock bolts and you will need to line hone the mains. At your power level, it will be plenty strong.

[Theboatandcarman]

Originally Posted by GR8-68

Exactly !!! it just seems that it gives you bragging rights, and just to inform on the direction I am going was a 383 stroker kit, everything I have been reading says it recommends a 4 bolt block to do the stroker motor. What is your guys feelings on that ? I just do not want that oh crap moment later down the road while I am trying to enjoy a cruise with my wife.

I may go with a set of splayed caps, just seems to be cheap insurance for something you are pouring your life savings into.

http://www.ebay.com/itm/331724313895

i built my 383 on a 2 bolt main with arp studs in everything.... dynoed at 532hp 515torque...... we will see longevity lol
but just remember you can likely find a short block 4 bolt 350 for the price of those caps!

[GR8-68]

Thanks for all the input, a bit of history on this block I have is that it was just recently already built and is freshly bored to 4.030, it still has the crosshatching showing. So by using this I will actually be saving some on machine work.