brad Posted June 16, 2014 Share Posted June 16, 2014 Trying to locate a smallport head to port & polish possibly, are 4agze/ 4age smallport heads the same? advantages/disadvantages with either? Will be putting it on a ST block for an N/A build, any help appreciated. ta guys Quote Link to comment Share on other sites More sharing options...
Rookie Posted June 16, 2014 Share Posted June 16, 2014 You should put a late 4afe head on it if you are going to do port work. 1 Quote Link to comment Share on other sites More sharing options...
kpr Posted June 17, 2014 Share Posted June 17, 2014 same shit Quote Link to comment Share on other sites More sharing options...
Sambo Posted June 17, 2014 Share Posted June 17, 2014 You should put a late 4afe head on it if you are going to do port work. Justify plz. Genuinely interested. Quote Link to comment Share on other sites More sharing options...
Yowzer Posted June 17, 2014 Share Posted June 17, 2014 IIRC you can run more aggressive cams than the GE heads, the valve angle is better, I think you can also fit larger valves and the ports are better designed to begin with. Or something like that, it's been awhile since I researched it. Basically the economy head is better for performance for the same amount of headwork. Quote Link to comment Share on other sites More sharing options...
kpr Posted June 17, 2014 Share Posted June 17, 2014 but you lose the 4age magic 2 Quote Link to comment Share on other sites More sharing options...
Yowzer Posted June 17, 2014 Share Posted June 17, 2014 Just mash a 20V head on and save on the portwork / have you considered a 2ZZ? 1 Quote Link to comment Share on other sites More sharing options...
brad Posted June 17, 2014 Author Share Posted June 17, 2014 cant really be bothered with the water relocation kit etc, rather keep it a 16v head. I just picked up a whole 20v silvertop for $50 off a mate so was I just going to use the 7rib block , itb's & a 16v head? t3 adaptor or the likes. with a standalone ecu etc ? open to ideas really. Quote Link to comment Share on other sites More sharing options...
smokin'joe Posted June 17, 2014 Share Posted June 17, 2014 curious to know any advantage of getting the smallport head and opening up the ports. would you not end up with a port size similar to a blue top ?? however, i have heard of smallport being reduced in size to increase port velocity Quote Link to comment Share on other sites More sharing options...
brad Posted June 17, 2014 Author Share Posted June 17, 2014 curious to know any advantage of getting the smallport head and opening up the ports. would you not end up with a port size similar to a blue top ?? however, i have heard of smallport being reduced in size to increase port velocity just a wee bit as i've heard they're nearly 'perfect'. bigports are 'too big' for na? i'm only going for a mild setup, not 100% sure yet but a smallport head seems to be a good start? same shit regarding 4agze/4age smallport heads? Quote Link to comment Share on other sites More sharing options...
Rookie Posted June 17, 2014 Share Posted June 17, 2014 Lol, 4AGE heads suck and at best can be made to work OK. Start with a 4afe head and you will be most of the way there without a lot of the fuck around. Quote Link to comment Share on other sites More sharing options...
flyingbrick Posted June 17, 2014 Share Posted June 17, 2014 Seems strange that you would not use the 20v head- it's best part. I'm sure peeps here would help with relocation of water But anyway.... Craycray that 4afe head flows better than 4age. Must be the only time an fe anything has been better than ge? Quote Link to comment Share on other sites More sharing options...
Spencer Posted June 17, 2014 Share Posted June 17, 2014 Na man the 1gfe Beams ports are a million times better than the 1gge. I would love to check one out IRL but I'd guess and say the 2JZFSE is probably better than the GE also, just because of the narrow valve angle and later design. Pretty sure there is only one variant of the 4AF head that is any good? I have pulled apart a few of them and lots are crap. Quote Link to comment Share on other sites More sharing options...
xsspeed Posted June 17, 2014 Share Posted June 17, 2014 small port 4age/gze heads are the same, bare in mind your pistons will need to change/be cut to suit 4 valve cylinder rather than 5. support market for 4age is huge, don't bother with 4afe unless you want to do a hole lot of faffing 1 Quote Link to comment Share on other sites More sharing options...
Spencer Posted June 17, 2014 Share Posted June 17, 2014 Yup just use a 4age, find a complete smallport and bang it in. Quote Link to comment Share on other sites More sharing options...
~Slideways~ Posted June 17, 2014 Share Posted June 17, 2014 curious to know any advantage of getting the smallport head and opening up the ports. would you not end up with a port size similar to a blue top ?? however, i have heard of smallport being reduced in size to increase port velocity The 'Big' in Bigport is the inlet ports, its not possible to make a smallport as big as a bigport. The bigport was just far too big, that's why Toyota made the TVIS butterflies to block off half of the port to increase velocity in the lower revs and opens up at 4200rpm (from memory). But they dropped it all in favour of the smallport. The Smallport is the better head for NA. Even turbo wise they work well compared to bigport, I've had both turbo'd and the smallport spooled far better. There is a guy on Toyspeed who made the smallport's ports even smaller and got good results. It was in a off road racer from memory. Quote Link to comment Share on other sites More sharing options...
brad Posted June 17, 2014 Author Share Posted June 17, 2014 Thanks speed n spencer, all i really wanted to know. Seems strange that you would not use the 20v head- it's best part. I'm sure peeps here would help with relocation of waterBut anyway.... Craycray that 4afe head flows better than 4age. Must be the only time an fe anything has been better than ge? you're welcome to the 20v head if you like ;p Quote Link to comment Share on other sites More sharing options...
flyingbrick Posted June 17, 2014 Share Posted June 17, 2014 The truth is that if I got it for a bargain I'd just try onsell it for a profit Lol. Got any LS heads kicking round tho? Quote Link to comment Share on other sites More sharing options...
phatt20 Posted June 18, 2014 Share Posted June 18, 2014 google billzilla Quote Link to comment Share on other sites More sharing options...
Rookie Posted June 18, 2014 Share Posted June 18, 2014 I did say the late 4afe/7afe head, as this is the one to go for. Quote Link to comment Share on other sites More sharing options...
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