Stock main caps ?

Will stock 429/460 main caps hold up to 1000 hp?

More than likely the 1st thing that will happen with 2 bolt block & large Hp......it'll crack from one of the main bolt holes to the cam tunnel.

Ok ... So is there anything that will help ? My block is a 68 , do main girdles work ? I wanna make between 600/700 hp and add a 200 shot on top of that

dfree383 wrote:Most effective fix is to just get a good block to start with, A460 or Eliminator.

By the time you have the caps installed, with the cost of the caps and all machine done that will need to be done, the cost of an after market block is not that bad. Also, with the block you have now you are limited to probably only a 4.440 max bore, with an after market you would have room to grow, have better oiling, and 18 bolt option to add 18 bolt heads later.

jason wrote:Ok ... So is there anything that will help ? My block is a 68 , do main girdles work ? I wanna make between 600/700 hp and add a 200 shot on top of that

for that power level ,if your tune is good/right it will live a long time. it will probaly have some cap walk around 800hp level

x2 for the aftermarket block
my old 501 with a stock block 2 bolt with studs
had cap walk and i was around 600hp
ran it around 7k

Lem Evans wrote:More than likely the 1st thing that will happen with 2 bolt block & large Hp......it'll crack from one of the main bolt holes to the cam tunnel.

Yep,#2 will most times be the culprit
Keeping the rpm's low will prolong the life alot.

Yep.....#2 is the #1 suspect.

Thanks guys I'd love to get another a-460 but it's not in the budget so I have to use my factory block .

Well that makes it easier , I guess I won't spray it then , it's gonna be a pump gas streeter for the most part .

Coast high performance sells a 521 stroker 4340 crank forged I beam rods forged pistons tool steel wrist pins rings and bearings for about $2400 . Are they any good? Who makes the crank and rods they sell ?

jason wrote:Coast high performance sells a 521 stroker 4340 crank forged I beam rods forged pistons tool steel wrist pins rings and bearings for about $2400 . Are they any good? Who makes the crank and rods they sell ?

There are some very good vendors on here that sell stroker kits and also have excellent customer service