XTREME KARTS XF 1,212 Posted November 30, 2016 Hey fella's I just picked up a 351c for my XD. half an engine minus the heads for $500 bucks. Its a Cleveland cast Block with "CF" and D2AE-CA (Cobra Jet block from what i found) The casting date is 7H24. I cant seem to find anything on here or the net to find out what exact date that the block was cast (unless im not looking hard enough LOL) Anyhelp will be greatly appeciated Share this post Link to post Share on other sites
bear351c 10,270 Posted November 30, 2016 From memory, which is always fuzzy, first number is year. So, 1977. Then month, day, Share this post Link to post Share on other sites
CHESTNUTXE 7,312 Posted December 1, 2016 are you sure its a h and not a u because by the cast date code there is no H for clevo blocks,d2ae just means of cleveland design,1977 Share this post Link to post Share on other sites
XTREME KARTS XF 1,212 Posted December 1, 2016 are you sure its a h and not a u because by the cast date code there is no H for clevo blocks,d2ae just means of cleveland design,1977 Yes it is a "H" 1 CHESTNUTXE reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,312 Posted December 1, 2016 ok its an august 77 block,i just checked on another website Share this post Link to post Share on other sites
bear351c 10,270 Posted December 1, 2016 Hey, Chestnut......which web page did you get that info from.?? 1 CHESTNUTXE reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,312 Posted December 1, 2016 GT engine info and gt models thats what it calls itself,has the date codes for all months and years Share this post Link to post Share on other sites
SPArKy_Dave 8,881 Posted December 2, 2016 I thought the letters started at A for February? Or maybe that was just for USA castings? 1 CHESTNUTXE reacted to this Share this post Link to post Share on other sites
FOMOCOHO 882 Posted December 2, 2016 I thought the letters started at A for February? Or maybe that was just for USA castings? Haha, you're wrong Dave... A to M without I (because it looks like 1... and J). It ain't rocket science... which is just a big kerosene shower-head anyway (but that's another story!). 2 SPArKy_Dave and bear351c reacted to this Share this post Link to post Share on other sites
FOMOCOHO 882 Posted December 2, 2016 From memory, which is always fuzzy, first number is year. So, 1977. Then month, day, 1977 correct...was poured on 24th August 1977. We only know that though because Mark's given us more info than the date stamp. Could have been 1967 but the 'D' in D2AE tell's us it is 1970's. Pay no attention to the rest of the D2AE... as they were all cast with this number here except the XE (experimental) blocks commissioned for NASCAR (3 runs total) of which the worst 300 from the 3rd run came back for refund in early 1982. They also found their way into Oz built cars with only two bolts in the caps. Wall thickness on most of them was down to 1/8" so no big deal anyway just beefier bottom end but weighed more than D2AE. Share this post Link to post Share on other sites
FOMOCOHO 882 Posted December 2, 2016 Hey fella's I just picked up a 351c for my XD. half an engine minus the heads for $500 bucks. Its a Cleveland cast Block with "CF" and D2AE-CA (Cobra Jet block from what i found) The casting date is 7H24. I cant seem to find anything on here or the net to find out what exact date that the block was cast (unless im not looking hard enough LOL) Anyhelp will be greatly appeciated Pay no attention to the CJ notation, you are reading an American source. 'CF' should be 'GF'... have a closer look? Also Mark, if you can post a photo looking down the thermostat housing with thermostat removed if it isn't already. Does it have the Brass insert or is the restrictor plate cast in the block??? What are the distributor bore dims??? Better measure it. I notice you're running the electronic dizzy in the 302 you have now. This new block is most likely a 'blue' block, if so will require points dizzy. Share this post Link to post Share on other sites
CHESTNUTXE 7,312 Posted December 2, 2016 only xd and xe had the GF all the older blocks have CF on them from the u.s. tooling made here,here is my 77 block Share this post Link to post Share on other sites
CHESTNUTXE 7,312 Posted December 2, 2016 and my 1982 pillowblock with GF 1 FOMOCOHO reacted to this Share this post Link to post Share on other sites
FOMOCOHO 882 Posted December 2, 2016 Cheers Chestnut... so he is reading it right! All pre 1975 blocks are US stock and should be 'CP'. Will most likely need a points dizzy. Is your 'CF' block points??? 1 CHESTNUTXE reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,312 Posted December 2, 2016 you can use any early dizzy be points or electronic ,MSD,ICE,MALLORY,plus the ebay bosch copys are ok for a std engine,XC had an electronic dizzy in the later model range and are quite rare to find these days,the best one on the market is the ICE dizzy as you can use them on any cleveland block late or early,but at around $1100 for a kit might be a bit steep for punters. 1 FOMOCOHO reacted to this Share this post Link to post Share on other sites
FOMOCOHO 882 Posted December 2, 2016 Yeah, he (Mark) is using a later E-dizzy in the 302. $100 Vs $1100... think sourcing an old Bosch points dizzy would more likely suit his budget! Share this post Link to post Share on other sites
FOMOCOHO 882 Posted December 2, 2016 you can use any early dizzy be points or electronic ,MSD,ICE,MALLORY,plus the ebay bosch copys are ok for a std engine,XC had an electronic dizzy in the later model range and are quite rare to find these days,the best one on the market is the ICE dizzy as you can use them on any cleveland block late or early,but at around $1100 for a kit might be a bit steep for punters. I think the XC with the blue-oval-badge post the F-O-R-D lettering on the bonnet were E-dizzy. 1978 somewhere. Share this post Link to post Share on other sites
FOMOCOHO 882 Posted December 2, 2016 only xd and xe had the GF all the older blocks have CF on them from the u.s. tooling made here,here is my 77 block Just checked a couple of ZJ blocks I have stripped down (both from JH63... cars, Eagle-farm QLD). Neither is marked 'GF'. One is marked 'CF', like your '77 block (cast 8th March 1979) the other has no 'C/G' marking whatsoever (cast 5th October 1978)! Both are E-dizzy, as all XD stuff. Both have the Brass restrictor insert. Oz-cast blocks are supposed to be marked 'GF' and have the restrictor cast-in according to literature. This is wrong I think. Edit: All C-blocks post 1972-73 are cast here... starting 1975. Share this post Link to post Share on other sites
CHESTNUTXE 7,312 Posted December 2, 2016 yeah all day we can talk about this but who cares as long as it is a good core to start with,here is the one i am rebuilding today and she is a 7H27 Share this post Link to post Share on other sites
CHESTNUTXE 7,312 Posted December 2, 2016 3 DAYS OLDER THAN THE KARTS LOL Share this post Link to post Share on other sites
FOMOCOHO 882 Posted December 2, 2016 yeah all day we can talk about this but who cares as long as it is a good core to start with,here is the one i am rebuilding today and she is a 7H27 Too true! Oz blocks are higher nickel content so machining requires lower cutting speed (or insert tips)... other than that it's only the dizzy bore that matters besides the bores. Edit: ...and the original camshaft concentricity and how many times it's been machined previously........... Share this post Link to post Share on other sites
FOMOCOHO 882 Posted December 2, 2016 yeah all day we can talk about this but who cares as long as it is a good core to start with,here is the one i am rebuilding today and she is a 7H27 It's a bit like matching numbers block blah blah too. If you run a York compressor, you can't read the engine-number anyway. I think i'd rather get in a non-matching numbers car with A/C if it's sat all day in the sun at a car show than a matching numbers car with no A/C. Share this post Link to post Share on other sites
FOMOCOHO 882 Posted December 3, 2016 and my 1982 pillowblock with GF Just checked the one in my ute and it's stamped 'GF' like yours^^^. Can't see the date or code... starter & manifold & stuff in the way. Enough banter though... I should be doing other things, doh! Share this post Link to post Share on other sites
SPArKy_Dave 8,881 Posted December 3, 2016 What happens if someone should have a Clevo block with a late 73 casting date, but no engine number? And normal un-marked rough casting, where an engine number would normally be? 1 CHESTNUTXE reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,312 Posted December 3, 2016 could be a yank block,or replacement from ford Share this post Link to post Share on other sites