LS1-510

I am building a 406 chevy small block for my 1972 Datsun 510 which currently houses a 350 with a 700R4 in it. I already have a virgin high nickel block and Kieth Black P/N KB130-030 pistons and Procomp 6" H-beam rods with 7/16" bolts. The crank is a Eagle cast steel unit with stock stroke. All parts are brand new. My question is does anyone have any experience with the Procomp connecting rods? Also I have heard that there might be some issues with the quality of the Eagle crank? Any feed back would be greatly appreciated.

Shawn @ VA Speed

iTrader: (3)

cant say about the rods,but i have used 100's of cast eagle cranks,never any problems,held 500hp with no problems

Ryan02SS

iTrader: (3)

I've never had a problem with an ESP crank. Although all have been 4340 forged models. In your case have it balanced by a professional shop with a good Hines Balancer along with the rods and pistons. You should be good to go. A well balanced cast crank can take more power and rpms than most think.

Chevy406

iTrader: (12)

^^ Good advice to balance the rotating assembly. Eagle makes good crankshafts, but I would have someone really check out the Procomp rods. Most of Procomp stuff is pretty low quality control.

bigdcustoms

iTrader: (1)

ditto on the procomp rods, all I ever hear is bad news about that company..

Ryan02SS

iTrader: (3)

IMO it's not worth it to risk your engine using parts that MIGHT be ok. Think of all the time and money invested only to lose a motor due to skimping on a so so set of rods. I would sell them on Ebay and use the return for a set of ESP 3D Hbeams with the 7/16 rod bolts. You can get a set for $300-350 and have a worry free mind. My latest set for my 385ci all specd out perfect on the big and small ends and were within 1 gram out of the box.

mikey8108

awesome project man. i am building a 72 510 also i also have a 350 sitting in it right now, gonna be a 383. i am finishing up parts of the cage and just picked up the jaguar rear end i am going to use. what are you using for a rear end?

LS1-510

The rear end I am using is an R200 with 3:54 gears from a 300Z turbo car. I also have power four wheel disc brakes from a 280 as well.

mikey8108

awesome. would you be interested in a r230 diff? i have one i dont need it's out of a q45 just a thought. also have the two rear 5 lug hubs from a 300zx if your interested in those? if you get a chance and it's no big deal you should send me some pics