February 25, 200917 yr comment_322503 hey lads I'm doing up my 4k and i need to find out which of the blocks in the "How to build a tough k motor" forum, and ive got this paragraph from it> There are also two different types of 4K block, one has three very noticeable ribs below the manifold side welsch plugs, just like a 3K if you can have a look at one. The other has small ribs and a large flat area. The unribbed block is far weaker, if you have one of them, scrap it. any ways before i go further can anyone tell me that if my block is this ribbed stronger block or not??? Report
February 25, 200917 yr comment_322512 From the sounds/looks of it you don't have the stronger 4k motor. As the ribs are supposed to be 'below' the welsh plugs and yours aint got none by the looks of it. Report
February 25, 200917 yr comment_322620 springersrolla, you have the ribbed 4k block. Attached is a pic of the earlier block with less reinforcement. Think it is a ke55 4k block. Think this pic was originally from superjamie. Report
February 26, 200917 yr Author comment_322765 good man, thanks for that mate, i can keep going with the overhaul Report
February 26, 200917 yr comment_322776 I don't get it... Where's the ribs on springersrolla's block?? Report
February 26, 200917 yr comment_322777 the ribs are between the 3 welsh plugs and above them on springers block, the raised part of the casting. Report
February 26, 200917 yr comment_322795 I don't get it...Where's the ribs on springersrolla's block?? look at the two blocks side by side, one has ribs running from the welsh plugs up to the deck, the other has those ribs, plus ribs between the welsh plugs... Report
February 26, 200917 yr comment_322840 ahh ok I think I see it now, but in the faq it said that the ribs are "below the manifold side welsch plugs" but I guess who ever wrote that meant below the manifold but above the welsch plugs?? Report
March 11, 200917 yr comment_326585 checked and found both my cars have the ribbed engines... yay anybody know if the ribbed blocks are less prone to cracking over 8500 compared to unribbed blocks? Report
March 11, 200917 yr comment_326609 probably not, they tend to get a bit harmonic and crack further up around the top of the block don't they? I'm not sure, just thought i remembered reading it... Report
March 11, 200917 yr comment_326612 checked and found both my cars have the ribbed engines... yay anybody know if the ribbed blocks are less prone to cracking over 8500 compared to unribbed blocks? There used to be a bloke in Victoria who was well known for building screamer 4K's. He used to play "dot to dot" with the welsh plugs on the un-ribbed blocks. Report
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