2nd Chance Posted November 13, 2014 Share Posted November 13, 2014 Hey all, need some advice from people who really know their xflows. I'm wanting to build a fast road spec xflow from a ford 681f. The build is budgetly restrained due to a large renno and young family. Hence I want to make sure my theory is right before I commit and spend money. First off I'm sticking with the original bore. It's fine as it is and I plan on passing the car on in years to come, so I won't bore unless I have to. The engine has a weber 32/36 dvag which is also staying. I'm intending to install a kent 234 cam and adjustable cam timing gear. I'm also planning on 41.3mm inlet valves, 33.7 exhaust valves with unleaded seats, and an electronic dizzy kit with uprated coil. All this with a bit of polish and maybe a small bit porting. Also have a free flow exhaust fitted. I'll fit new leads and plugs as well. Am I on the right track with this set up? And is there anything else I should consider? Thanks in advance Quote Link to comment Share on other sites More sharing options...
bigmatt4 Posted November 13, 2014 Share Posted November 13, 2014 1300/1600? Low/high compression? Quote Link to comment Share on other sites More sharing options...
Rookie Posted November 13, 2014 Share Posted November 13, 2014 You will need to buy new pistons if you want it to go ok. Your not wanting to bore and the pus twin choke weber will hold you back though. Quote Link to comment Share on other sites More sharing options...
Raizer Posted November 13, 2014 Share Posted November 13, 2014 Would say to look for a 711 block to begin with, but if your staying stock bore and Webber then just chuck a GT cam (or Kelford did a "GT+" cam years back) and some headers on it and call it a day. Quote Link to comment Share on other sites More sharing options...
peteretep Posted November 13, 2014 Share Posted November 13, 2014 dont worry about the block, it only matters with a full on race car IMO, I have been running a 681f for years without issue (fingers crossed more years to come too). Bigger problem is with the recessed head and an earlier block is that you cant just fit 1300 pistons as both have dish so you will lower compression I also wouldnt worry about adjustable timing gear if money is an issue Quote Link to comment Share on other sites More sharing options...
tortron Posted November 15, 2014 Share Posted November 15, 2014 Considered a suck through supercharger set up? 2 Quote Link to comment Share on other sites More sharing options...
pusherman Posted November 21, 2014 Share Posted November 21, 2014 ^ always wnted to do this. Sold my sc12 tho. 1 day Quote Link to comment Share on other sites More sharing options...
RUNAMUCK Posted November 22, 2014 Share Posted November 22, 2014 427 car guy has been monkeying around with one of these set ups. Quote Link to comment Share on other sites More sharing options...
pusherman Posted November 23, 2014 Share Posted November 23, 2014 ^ build thread? Quote Link to comment Share on other sites More sharing options...
shaneo Posted November 23, 2014 Share Posted November 23, 2014 427 car guy has been monkeying around with one of these set ups. Have looked at this pretty cool and I have a SC12 at home as well just time ?????? Quote Link to comment Share on other sites More sharing options...
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