CHESTNUTXE 7,312 Posted May 1, 2021 well yes they clear strokers but the mains on a 400 are 3 inch compard to 2.75 on a 351c but dont all 335 series engines share the same bolt pattern on the mains ,perhaps the main caps are just widend a bit on a 400 but bolt up the same space as a 351c ? Share this post Link to post Share on other sites
gerg 10,871 Posted May 1, 2021 well yes they clear strokers but the mains on a 400 are 3 inch compard to 2.75 on a 351c but dont all 335 series engines share the same bolt pattern on the mains ,perhaps the main caps are just widend a bit on a 400 but bolt up the same space as a 351c ?Clevos have 2.75" journals, 400M and 351W have 3". I think the bolt spacings on the main caps are the same. There's only 0.125" difference in distance from the tunnel bore to the main caps bolt hole each side.Sent from my CPH1920 using Tapatalk 2 Outback Jack and CHESTNUTXE reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,312 Posted May 2, 2021 i had another idea late last night ,put a 351m piston on a 302c rod ,a 351m piston is taller than a 400,but i did some quick math and it dont look like its gunna be a cheap way out a bumping up the comp,just a thought. Share this post Link to post Share on other sites
gerg 10,871 Posted May 2, 2021 i had another idea late last night ,put a 351m piston on a 302c rod ,a 351m piston is taller than a 400,but i did some quick math and it dont look like its gunna be a cheap way out a bumping up the comp,just a thought.Gudgeon pins are different between Clevos and Ms, so the piston would need to be bushed down. So, even more expense on top of the piston price... Thanks Ford for changing sht that should have all been the sameSent from my CPH1920 using Tapatalk 1 CHESTNUTXE reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,312 Posted May 2, 2021 yes the pin job is 8 bushings,but the comp height is 1.645 and the 400 is 1.630 on most aftermarket flatops and no big dish in the middle,or kieth black pop up from summitt.you see im using the big open chamber heads, Share this post Link to post Share on other sites
FORD_MAN 1,026 Posted May 2, 2021 Random browsing, Silvolite part No. 3330, Australian Ford Cleveland. Comp height 1.720", bore 4.000", 0.912 pin, unsure of dish CC's tho, may work with bushed 400M conrods https://uempistons.com/series-4280-silv-o-lite-australian-ford-351-5-7-3330.html 1 CHESTNUTXE reacted to this Share this post Link to post Share on other sites
gerg 10,871 Posted May 2, 2021 yes the pin job is 8 bushings,but the comp height is 1.645 and the 400 is 1.630 on most aftermarket flatops and no big dish in the middle,or kieth black pop up from summitt.you see im using the big open chamber heads,In that case can you get a set with a gentle dome on them? I think the cheapest/easiest path is to use the right pistons, even if they have to be custom, instead of trying to use ones for something else and having to do a whole bunch of work-arounds to make them fitSent from my CPH1920 using Tapatalk 2 CHESTNUTXE and Outback Jack reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,312 Posted May 2, 2021 In that case can you get a set with a gentle dome on them? I think the cheapest/easiest path is to use the right pistons, even if they have to be custom, instead of trying to use ones for something else and having to do a whole bunch of work-arounds to make them fitSent from my CPH1920 using TapatalkJust on to pulling apart the heads and i might be in some luck just a tiny clean and these heads have been pulled apart before someone cleaned the valves and the rubber oil drippers were still soft ,also looks like some portwork as wellSent from my SM-G610Y using Tapatalk 2 Outback Jack and gerg reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,312 Posted May 6, 2021 Just on to pulling apart the heads and i might be in some luck just a tiny clean and these heads have been pulled apart before someone cleaned the valves and the rubber oil drippers were still soft ,also looks like some portwork as wellSent from my SM-G610Y using TapatalkI started sat morn cleaning the first 2v head and end of the day all done and looking good Sent from my SM-G610Y using Tapatalk 1 Outback Jack reacted to this Share this post Link to post Share on other sites
gerg 10,871 Posted May 6, 2021 I started sat morn cleaning the first 2v head and end of the day all done and looking good Sent from my SM-G610Y using TapatalkThose are Aussie part numbers... These are probably Aussie 351 headsSent from my CPH1920 using Tapatalk 2 Outback Jack and CHESTNUTXE reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,312 Posted May 6, 2021 yeah strange and 1972 cast date ? we didnt cast our own clevos till around this date with the xa era didnt we ? Share this post Link to post Share on other sites
gerg 10,871 Posted May 6, 2021 yeah strange and 1972 cast date ? we didnt cast our own clevos till around this date with the xa era didnt we ?I can't find any decent info on when we stopped importing blocks and started making them here. I know any 302C had at least Aussie heads from the start as they're all closed 2Vs.But any part number starting with "AR" is Aussie as it stands for "Australian Revision", then the US part number on which it was based comes after that.Sent from my CPH1920 using Tapatalk 2 burnnotice1000 and Outback Jack reacted to this Share this post Link to post Share on other sites
burnnotice1000 588 Posted May 6, 2021 I can't find any decent info on when we stopped importing blocks and started making them here. I know any 302C had at least Aussie heads from the start as they're all closed 2Vs.But any part number starting with "AR" is Aussie as it stands for "Australian Revision", then the US part number on which it was based comes after that.Sent from my CPH1920 using TapatalkCould ford just imported the bottom of the 400 and we built the rest here nah i doubt it altho the engine is out of a 72 galaxie Australian compliance Sent from my SM-G610Y using Tapatalk Share this post Link to post Share on other sites
gerg 10,871 Posted May 6, 2021 Could ford just imported the bottom of the 400 and we built the rest here nah i doubt it altho the engine is out of a 72 galaxie Australian compliance Sent from my SM-G610Y using TapatalkI don't think Ford would've liked to assemble engines locally that they're not familiar with just to put their own heads in them, and a very small number too. Not even sure if Ford Oz even imported them or if they just came here in various US import cars.I think all 400s that made it here would have come as complete engines, and those heads you have were likely fitted at a later date... Don't forget, there's nearly 50 years for that to have happened throughout the engines life now.Sent from my CPH1920 using Tapatalk 2 burnnotice1000 and Outback Jack reacted to this Share this post Link to post Share on other sites
burnnotice1000 588 Posted May 6, 2021 I don't think Ford would've liked to assemble engines locally that they're not familiar with just to put their own heads in them, and a very small number too. Not even sure if Ford Oz even imported them or if they just came here in various US import cars.I think all 400s that made it here would have come as complete engines, and those heads you have were likely fitted at a later date... Don't forget, there's nearly 50 years for that to have happened throughout the engines life now.Sent from my CPH1920 using TapatalkArr yeah i forgot i dropped the block off at the machine shop and the crank needs a mill to 020 also the block needs 1 sleeve as i found a hole in the bore but seems to be from casting not piston or rust in the jacket but for $200 he can sleve the m/fSent from my SM-G610Y using Tapatalk 2 gerg and Outback Jack reacted to this Share this post Link to post Share on other sites
deankxf 20,292 Posted May 6, 2021 37 minutes ago, burnnotice1000 said: Arr yeah i forgot i dropped the block off at the machine shop and the crank needs a mill to 020 also the block needs 1 sleeve as i found a hole in the bore but seems to be from casting not piston or rust in the jacket but for $200 he can sleve the m/f Sent from my SM-G610Y using Tapatalk  burnnotice1000 .. new member 2 gerg and burnnotice1000 reacted to this Share this post Link to post Share on other sites
burnnotice1000 588 Posted May 6, 2021 burnnotice1000 .. new member I dont know why it gave my old e mail address after the site has been offline for a few daysSent from my SM-G610Y using Tapatalk 1 1 Outback Jack and deankxf reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,312 Posted May 6, 2021 the guy i bought the engine off said the 400 came out of a f truck so i would say a new set of heads was done to suit unleaded or gas as someone has rebuilt them before and the valves did not look that old and definatly not the original ford valves,if so the chambers will be a tad smaller not much tho just a few cc. 2 gerg and Outback Jack reacted to this Share this post Link to post Share on other sites
gerg 10,871 Posted May 6, 2021 the guy i bought the engine off said the 400 came out of a f truck so i would say a new set of heads was done to suit unleaded or gas as someone has rebuilt them before and the valves did not look that old and definatly not the original ford valves,if so the chambers will be a tad smaller not much tho just a few cc.Well that's a plus, hopefully the guides are still fresh. Good thing that the factory valves are gone, they have the occasional tendency to pop their heads off with any sort of valve spring upgrades and rpm. With any luck, you scored better valvesprings too but if not, now's the time to upgrade. Factory ones are poo. Mine used to float above 5k rpm with only the baby cam. I got lucky with mine, valves came up good and the heads already had hardened seats put in and k-lines in the guides.Sent from my CPH1920 using Tapatalk 2 CHESTNUTXE and Outback Jack reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,312 Posted May 6, 2021 olm8 has the spring checker where you press the spring down ,but i dont think im gunna keep this engine as i was only going to put a std cam back in it ,i can land a complete rebuild kit from usa for about $750 that has everything,pistons n all,also have this vision of painting this one ford dark blue. 2 gerg and Outback Jack reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,312 Posted May 7, 2021 ok turns out the springs are std and wouldnt support any type of decent cam without buying bigger springs,but fine with std cam. 3 gerg, burnnotice1000 and Outback Jack reacted to this Share this post Link to post Share on other sites
burnnotice1000 588 Posted May 7, 2021 ok turns out the springs are std and wouldnt support any type of decent cam without buying bigger springs,but fine with std cam.On to the 2nd head now should all be done soonSent from my SM-G610Y using Tapatalk 2 1 bear351c, CHESTNUTXE and Outback Jack reacted to this Share this post Link to post Share on other sites
Outback Jack 6,352 Posted May 8, 2021 Looking good Chestnut.Got to love a Big bore Ford V8.Sent from my S21 using Tapatalk 1 burnnotice1000 reacted to this Share this post Link to post Share on other sites
burnnotice1000 588 Posted May 8, 2021 Looking good Chestnut.Got to love a Big bore Ford V8.Sent from my S21 using TapatalkI just blasted some parts and glass blasted the manifold once but it came up ok but not to what i want ,i want it looking a million dollars not average i also painted the balancer ford dark blue and it looks meanSent from my SM-G610Y using Tapatalk 1 Outback Jack reacted to this Share this post Link to post Share on other sites
gerg 10,871 Posted May 8, 2021 Maybe try some garnet?Sent from my CPH1920 using Tapatalk 1 burnnotice1000 reacted to this Share this post Link to post Share on other sites