Guest Anonymous Posted November 16, 2001 Share Posted November 16, 2001 Hey All, I'm building a SBC 327 and I'm looking to increase the rod/stroke ratio without shelling out big bucks for aftermarket rods and custom pistons. I've been looking around, and it seems like Buick V6 rods from a 181?,196, 225, 231, or 252 would make good candidates for my application. They are readily available, are 5.960" in length and come in 2.1" and 2.25" rod journal diameters... Now here is my question, in what applications did the 5.960" long rods with a 2.1" journal come in? Also how wide are these rods and what is the small end diameter? It would be great if I could adapt these to use 'em along with a 5.7" 383 piston in a SBC... I know almost nothing about the Buick motors so hopefully you guys will help elucidate me on the matter. Thanks Quote Link to comment Share on other sites More sharing options...
Scottie-GNZ Posted November 16, 2001 Share Posted November 16, 2001 Omar, go to www.gnttype.org and rifle through the Technical section. Quote Link to comment Share on other sites More sharing options...
Mike C Posted November 16, 2001 Share Posted November 16, 2001 You can buy brand new 6" bushed rods with ARP bolts from Powehouse at www.enginekits.com for $239. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted November 16, 2001 Share Posted November 16, 2001 Yes I know... I can buy 5140 6" rods bushed and ARPed for $170 shipped. But that's $170 I'd rather be spending elsewhere, read my post, I wanna do this FOR CHEAP, without buying aftermarket rods or custom pistons Quote Link to comment Share on other sites More sharing options...
pparaska Posted November 16, 2001 Share Posted November 16, 2001 Omar, aren't bearing spacers, machine work, new ARP bolts, resizing, etc. going to get close to or go beyond $170? Stock rods are cool, but to have great bolts in a goood designed rod for cheap money is hard to turn down. Quote Link to comment Share on other sites More sharing options...
Mike C Posted November 16, 2001 Share Posted November 16, 2001 Thanks Pete, that's the point I was trying to make on cost of rods. I had a friend who had the regular TRW flat tops dished 10cc for a 455 Pontiac. I'm pretty sure that was closer to .125. You need to look at the bottom, but I don't see any problem taking .040 off the top. Especially a normally aspirated motor. The top ring starts getting pretty close to the combustion area, which puts more load on the ring itself. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted November 17, 2001 Share Posted November 17, 2001 Pete, if the Buick rod swap is indeed possible, we would need to install ARP bolts, maybe resize the rods, and bush the small end... So you're right, shouldn't leave much change from $170 However, what everybody has failed to mention is whether I can safely mill the pistons down ~0.040 so I can use these 6" rods without resorting to fancy pistons... something that wouldn't be necessary with the Buick Rods Quote Link to comment Share on other sites More sharing options...
pparaska Posted November 17, 2001 Share Posted November 17, 2001 I've had TRW forged flat tops milled about 0.005". Not sure if 8 times that is possible without them getting too thin or breaking through. I'd bet that's a signficant portion of a flat top's thickness. Quote Link to comment Share on other sites More sharing options...
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