I am in the process of gathering parts for my engine build. Its a .100" over 4.250" stroke markIV BBC. Forged eagle crank, internal balance for 6.385" rods. Pistons are solid dome 13.2:1 forged probe. I am looking at eagle rods and wondering what rod bolts I should go with. The motor is going in a 21' Liberator tunnel, pulling a dominator A impeller. This is not all out race effort by any means, just want it to run decent and be reliable. My machinist tells me I will be fine with the 8740 bolts, but I wanted some more opinions. Thanks
Sorry, not a answer to your question but interested in your build.
Question...did you have that block sonic checked for .100 over?
Cam, head selection?
Obviously this isn't going to be a pump gas friendly engine.
I am in the process of gathering parts for my engine build. Its a .100" over 4.250" stroke markIV BBC. Forged eagle crank, internal balance for 6.385" rods. Pistons are solid dome 13.2:1 forged probe...
I'm thinking about doing the exact same build. Which Mark IV casting do you have? Good luck.
Im not sure what casting the block is, it is at the machine shop. It is a two bolt that is getting converted to four with arp studs and gm caps. My machinist had it checked and said it was good to go. We are doing a partial fill with hard block. Heads are pro-crap 320s because that is the only aluminum head I can afford, but I know they are good because my uncle has two sesons on them in his tx-19 and they were set up by his machinist. As far has cam goes it will be a Lunati hyd. Roller .250 at .050 110 lobe sep. I would like to bigger on the cam but I already have this one and summer is sneakin up quick. dont have intake yet but will prob. go with victor jr. Carb is a 1050 dominator gonna be converted to e-85. Only thing left to buy for rotating assembly is rods and I'm not sure what bolts are right for my application.
I would buy the best rods you could afford, changing out heads, cam, intakes, easy, rods, not so easy. There's alot of good motors out there running budget type H-beams, but they have their limitations. Build a bottom end you can grow into, not out of. I haven't researched them yet, or heard any feedback about them, but the new Howards Ultimate Duty Billet Rods are 100% American made, by a company with a long history of great products, and the prices are very reasonable. If I was building mid/high output motor with a budget in mind, I would spring the little extra dough, and give them a try over H-beams. Those are just my thoughts, I'm sure somone will disagree. Check them out for yourself at Howards Racing Components.