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Max C.I. with aluminum rods in a stock block #507261 10/25/09 08:00 PM 10/25/09 08:00 PM
Joined: Feb 2005 Posts: 672 Keysville, VA D drag440 OP mopar addict
drag440 OP mopar addict D Joined: Feb 2005 Posts: 672 Keysville, VA	I would like to know how big of a stroke can be put in a stock block with aluminum rods. I know I can build a 543 with 2.200 rod journals and steel rods, but aluminum rods are so much bigger I don't think they will fit. Maybe a 528 with a 4.250 stroke?

Re: Max C.I. with aluminum rods in a stock block [Re: drag440] #507262 10/25/09 11:15 PM 10/25/09 11:15 PM
Joined: Jul 2006 Posts: 803 Fl. USA PS Arrow super stock
PS Arrow super stock Joined: Jul 2006 Posts: 803 Fl. USA	I had a 543 with aluminum rods in a stock block, creative clearancing, but it all fit.

Re: Max C.I. with aluminum rods in a stock block [Re: PS Arrow] #507263 10/25/09 11:21 PM 10/25/09 11:21 PM
Joined: Oct 2004 Posts: 5,618 long island NY A Ari440 master
Ari440 master A Joined: Oct 2004 Posts: 5,618 long island NY	Quote: I had a 543 with aluminum rods in a stock block, creative clearancing, but it all fit. can you tell the whole combo of parts you used I would like to collect parts to do it too 1.39 9.85 - 137 mph

Re: Max C.I. with aluminum rods in a stock block [Re: drag440] #507264 10/26/09 09:29 AM 10/26/09 09:29 AM
Joined: Jul 2003 Posts: 977 Colorado 5 506RR super stock
506RR super stock 5 Joined: Jul 2003 Posts: 977 Colorado	With aluminum rods, you could make a 4.25 fit. Which would be ~505 CI, depending on overbore, not 528. A 4.375 stroke would be about 528 CI. I have never seen a 4.5 stroke with aluminum rods in a stock block, but as mentioned above, it sounds like it can be done.

Re: Max C.I. with aluminum rods in a stock block [Re: 506RR] #507265 10/26/09 09:59 AM 10/26/09 09:59 AM
Joined: Nov 2003 Posts: 6,293 Rock Springs Bob_Coomer master
Bob_Coomer master Joined: Nov 2003 Posts: 6,293 Rock Springs	What ever bore but figure 4.5 stroke with standard cam block...GRP aluminum rods just need a hair of clearance. [color:"red"]65 Hemi Belvedere coming soon [/color] [color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]

Re: Max C.I. with aluminum rods in a stock block [Re: Bob_Coomer] #507266 10/26/09 10:06 AM 10/26/09 10:06 AM
Joined: Jul 2006 Posts: 803 Fl. USA PS Arrow super stock
PS Arrow super stock Joined: Jul 2006 Posts: 803 Fl. USA	Mine was 4.5 crank, with Miller Rods. As mentioned the GRP would be better, I had a lot of iron dust on the floor and had to trim a touch on the rods too. Dont remember all the specifics on it, I had that over 10 years ago.

Re: Max C.I. with aluminum rods in a stock block [Re: 506RR] #507267 10/26/09 06:25 PM 10/26/09 06:25 PM
Joined: Feb 2005 Posts: 672 Keysville, VA D drag440 OP mopar addict
drag440 OP mopar addict D Joined: Feb 2005 Posts: 672 Keysville, VA	Quote: With aluminum rods, you could make a 4.25 fit. Which would be ~505 CI, depending on overbore, not 528. A 4.375 stroke would be about 528 CI. I have never seen a 4.5 stroke with aluminum rods in a stock block, but as mentioned above, it sounds like it can be done. Thanks for the info. The 4.375 crank was the one that I was woundering if it would fit. I didn't think 4.500 would work at all. I was also worried about the rods hitting the cam.

Re: Max C.I. with aluminum rods in a stock block [Re: drag440] #507268 10/26/09 07:08 PM 10/26/09 07:08 PM
Joined: Jan 2003 Posts: 10,011 Frostbitefalls MN (Rocky&Bullw... gregsdart I Live Here
gregsdart I Live Here Joined: Jan 2003 Posts: 10,011 Frostbitefalls MN (Rocky&Bullw...	I had a set of BME aluminum rods made with 2.100 journals, 7.050 long for an offset ground stock crank. I would bet you could easily go 4.5+ stroke with those, being so small. I wouldn't try it on anything but the absolute best crank material though! Last edited by gregsdart; 10/26/09 07:09 PM. 8..603 156 mph best, 2905 lbs 549, indy 572-13, alky

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