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LA with hemi heads? #228099 02/17/09 08:41 PM 02/17/09 08:41 PM
Joined: Jan 2007 Posts: 3,695 nc E emarine01 OP master
emarine01 OP master E Joined: Jan 2007 Posts: 3,695 nc	Herd something about putting hemi heads on a 59 degree la block , is it doable?

Re: LA with hemi heads? [Re: emarine01] #228100 02/17/09 09:16 PM 02/17/09 09:16 PM
Joined: Jan 2003 Posts: 7,131 Amarillo, Texas BBR master
BBR master Joined: Jan 2003 Posts: 7,131 Amarillo, Texas	No. No hemi head will fit well on a small block. The closest would be a early hemi. It is pretty close and could be done by somebody with access to a machine shop but the cost outweights the benefit by a gigantic margin. Drag Week 2011 - 77th place - DD Drag Week 2012 - 2nd place SRBB N/A Drag Week 2014 - Kapooya RMRW 2018 RMRW 2020

Re: LA with hemi heads? [Re: emarine01] #228101 02/17/09 09:21 PM 02/17/09 09:21 PM
Joined: Feb 2007 Posts: 898 iowa copchaser super stock
copchaser super stock Joined: Feb 2007 Posts: 898 iowa	I think a while back there was a deal in MCG about some shop who was making a hemi head conversion kit for small blocks. I don't remember who it was but I did call them and it was big money.

Re: LA with hemi heads? [Re: copchaser] #228102 02/17/09 09:24 PM 02/17/09 09:24 PM
Joined: Jun 2006 Posts: 259 Canada L lenweiler enthusiast
lenweiler enthusiast L Joined: Jun 2006 Posts: 259 Canada	I saw these about 3 years back. Expensive... yes. Not a particularly good flowing piece either......... http://www.rodandcustommachines.com/smallblockhemiheads.html Damn! I dropped my change.............

Re: LA with hemi heads? [Re: emarine01] #228103 02/17/09 09:24 PM 02/17/09 09:24 PM
Joined: Jan 2007 Posts: 2,431 SK,Canada gregsrt top fuel
gregsrt top fuel Joined: Jan 2007 Posts: 2,431 SK,Canada	Quote: Herd something about putting hemi heads on a 59 degree la block , is it doable? Anything is possible with $$$$$. ask and ye shall receive http://www.rodandcustommachines.com/smallblockhemiheads.html An association of men who will not quarrel with one another is a thing which has never yet existed, from the greatest confederacy of nations down to a town meeting or a vestry. Thomas Jefferson

Re: LA with hemi heads? [Re: lenweiler] #228104 02/17/09 09:25 PM 02/17/09 09:25 PM
Joined: Jan 2007 Posts: 2,431 SK,Canada gregsrt top fuel
gregsrt top fuel Joined: Jan 2007 Posts: 2,431 SK,Canada	ya beat me to it An association of men who will not quarrel with one another is a thing which has never yet existed, from the greatest confederacy of nations down to a town meeting or a vestry. Thomas Jefferson

Re: LA with hemi heads? [Re: gregsrt] #228105 02/17/09 09:57 PM 02/17/09 09:57 PM
Joined: Apr 2007 Posts: 2,026 Trumbull,CT. J jim sciortino top fuel
jim sciortino top fuel J Joined: Apr 2007 Posts: 2,026 Trumbull,CT.	Are you talking about the old school HEMI heads or the P-5 small block stuff??? The P-5 head has a dedicated block, but maybe if you can get a new XR style block with a blank deck......the possibilities are endless.hehehe

Re: LA with hemi heads? [Re: jim sciortino] #228106 02/17/09 10:52 PM 02/17/09 10:52 PM
Joined: Jan 2007 Posts: 3,695 nc E emarine01 OP master
emarine01 OP master E Joined: Jan 2007 Posts: 3,695 nc	thought the new stuff flowed better ,I checked the link saw the numbers , I think Ill keep my W5s

Re: LA with hemi heads? [Re: emarine01] #228107 02/18/09 10:34 AM 02/18/09 10:34 AM
Joined: Jan 2008 Posts: 1,211 Minn S SportF pro stock
SportF pro stock S Joined: Jan 2008 Posts: 1,211 Minn	old hemi heads will fit on the first generation of the poly, the one with the real serrated valve cover. There is some difference between the early and late poly that allows this. My son is knowledgeable in this area and has done this, but he's not around to detail this right now. But old to old poly info is around.

Re: LA with hemi heads? [Re: SportF] #228108 02/18/09 11:25 AM 02/18/09 11:25 AM
Joined: Jan 2007 Posts: 3,695 nc E emarine01 OP master
emarine01 OP master E Joined: Jan 2007 Posts: 3,695 nc	Dont know much about the polys , are they big castings like the old hemis or light like a la block , can you get any cubes out of one?

Re: LA with hemi heads? [Re: emarine01] #228109 02/18/09 11:34 AM 02/18/09 11:34 AM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: Dont know much about the polys , are they big castings like the old hemis or light like a la block , can you get any cubes out of one? If I remember right the LA bottom end will fit in a poly block but the block is wider than a LA block (the poly block was the original A engine)

Re: LA with hemi heads? [Re: SportF] #228110 02/18/09 12:19 PM 02/18/09 12:19 PM
Joined: Oct 2007 Posts: 4,206 New York polyspheric master
polyspheric master Joined: Oct 2007 Posts: 4,206 New York	Only Dodge hemi (241, 270, 315, 325) heads fit Dodge poly (241, 259, 315, 325) blocks. Only Chrysler hemi (331, 354, 392) heads fit Chrysler poly (301, 331, 354) blocks. No original hemi head, of any brand, fits Plymouth etc. poly A (277, 301, 303, 313, 318, 326) or LA (273, 318, 340, 360) blocks. DeSoto hemi (276, 291, 330, 341, 345) heads don't fit any poly blocks. Boffin Emeritus

Re: LA with hemi heads? [Re: polyspheric] #228111 02/18/09 12:57 PM 02/18/09 12:57 PM
Joined: Apr 2007 Posts: 871 WA 98043 thecarfarmer super stock
thecarfarmer super stock Joined: Apr 2007 Posts: 871 WA 98043	Quote: Only Dodge hemi (241, 270, 315, 325) heads fit Dodge poly (241, 259, 315, 325) blocks. Only Chrysler hemi (331, 354, 392) heads fit Chrysler poly (301, 331, 354) blocks. No original hemi head, of any brand, fits Plymouth etc. poly A (277, 301, 303, 313, 318, 326) or LA (273, 318, 340, 360) blocks. DeSoto hemi (276, 291, 330, 341, 345) heads don't fit any poly blocks. QFT. Bore spacing is different. I checked on 'em all, because I was thinking of doing a swap onto a later lower end if possible (less weight and less $$$). -bill Seduce the attractive, and charm the rest. ****** 489 C.I.D., roller cam, aftermarket heads, tunnel ram, stock '54 Dodge rear axle assembly: which of these doesn't belong?

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