Author	[Modern View]
MDWK40 08-10-2012 08:46:24 166.182.3.212 Report to Moderator	My 15 year old son just bought a GB diesel and he has a vision. I have a HD605 and he would like to bolt his diesel heads on and convert it to a diesel. I know some head bolt holes have to be drilled, and my 605 has the webbed jugs. has anyone ever tryed this swap? Thanks. [Reply]   [No Email]
mm585 08-13-2012 10:11:09 166.182.3.144 Report to Moderator	Re: 605 diesel engine in reply to MDWK40, 08-10-2012 08:46:24   Will we be able to safley bore the jugs to 4.75 on a diesel? If it were a gas enginge I wouldent bat an eye, but the detonation and compresion of a diesel makes me nervous. The reason I ask is because a few years ago I bought a set of 4.75 M&w pistons that the previous owner milled the dome off and had ran them in a 5 star diesel and he cracked two cylinder walls. We have the webed jugs Im not sure what he had. [Reply]  [No Email]
mightymolinekid 08-13-2012 13:48:55 166.181.3.4 Report to Moderator	Re: 605 diesel engine in reply to mm585, 08-13-2012 10:11:09   Yes just make sure you use jugs from a newer 504 or 336 diesel. Sleeves will easily fix cracked cylinder walls lol. I'm running a 4.75" bore diesel 4 cylinder. [Reply]  [No Email]
minnmoman 08-12-2012 13:36:07 70.194.7.103 Report to Moderator	Re: 605 diesel engine in reply to MDWK40, 08-10-2012 08:46:24   Lol , i fergot my other too cents,,, 605 rods bearing, might be smaller, but a small obstical, can be easliy, remadey, if ya not a cummins man ,, i think kittycat piston is a ultamit,, ya might check into sprayin oil to up under those kittys lol.. It be tuff puller,, [Reply]  [No Email]
mightymolinekid 08-12-2012 13:31:29 24.183.138.199 Report to Moderator	Re: 605 diesel engine in reply to MDWK40, 08-10-2012 08:46:24   minnmoman has lots of good ideas, just ask his parts yard in Wisconsin. How about Cat pistons? Those are 4.75". With a 605 crank you got 640 CID and you can run the short jugs on your original GBD crankcase. Yes go with the Roosa-Master pump, you will get way more fuel out of that than you can from the Bosch. [Reply]  [No Email]
minnmoman 08-12-2012 13:08:37 70.194.7.103 Report to Moderator	Re: 605 diesel engine in reply to MDWK40, 08-10-2012 08:46:24   U might want to research, 605 crank ,off set grind ,, add alitttle stroke, newer m.m. Rods cummins pistons, taper the rods at the top, regrind cam , or go with a newer cam, cam grinds are a little better , look at the heads gb heads might be little tighter on compression ..maybe look for newer heads flow .more air,, gotta run a rosamaster pump run ,big head on it ,can go bigger. Pistons, may cost ya some, but will work,,jus my too cents [Reply]  [No Email]
mm585 08-10-2012 18:34:24 166.182.3.52 Report to Moderator	Re: 605 diesel engine in reply to MDWK40, 08-10-2012 08:46:24   I forgot to mention he cant run any HD800 parts. I think he could get away with an early 800 lower end and jugs though. this tractor will be pulled in the clasic classes at 10% over factory high idle. Is there enouff cast in the top of the early 800 jugs to drill and put in the missing studs? I did get a roosa master pump and drive today but no lines. Im starting to think a 585 with the small bell from a gb gas may be the way to go. Then rework a gas flywheel?? I dont know. [Reply]  [No Email]
LW 08-11-2012 05:19:41 184.3.225.69 Report to Moderator	Re: 605 diesel engine in reply to mm585, 08-10-2012 18:34:24   Then just put a 605HD crank in a 504dhd. Use a differtent rod and piston, get up to 650-675 cid fairly easy. [Reply]  [No Email]
mm585 08-10-2012 18:34:23 166.182.3.195 Report to Moderator	Re: 605 diesel engine in reply to MDWK40, 08-10-2012 08:46:24   I forgot to mention he cant run any HD800 parts. I think he could get away with an early 800 lower end and jugs though. this tractor will be pulled in the clasic classes at 10% over factory high idle. Is there enouff cast in the top of the early 800 jugs to drill and put in the missing studs? I did get a roosa master pump and drive today but no lines. Im starting to think a 585 with the small bell from a gb gas may be the way to go. Then rework a gas flywheel?? I dont know. [Reply]  [No Email]
Dieselbear 08-10-2012 17:55:52 50.193.137.19 Report to Moderator	Re: 605 diesel engine in reply to MDWK40, 08-10-2012 08:46:24   You can make one bigger than that, but not that combo [Reply]  [No Email]
mm585 08-10-2012 15:10:54 166.182.3.136 Report to Moderator	Re: 605 diesel engine in reply to MDWK40, 08-10-2012 08:46:24   Isnt anyone going to reply? Ive often thought about this conversion also. Can it be done? [Reply]  [No Email]
LW 08-10-2012 17:58:28 184.3.225.69 Report to Moderator	Re: 605 diesel engine in reply to mm585, 08-10-2012 15:10:54   I think a HD 800 bottom and 5.400 bore cat pistons would be a great combo to do this and keep the compression in line. [Reply]  [No Email]