4age bigport head: port & polish

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4age bigport head: port & polish

10-18-2006, 08:28 PM

Post: #9

jamiemirror Offline

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BenR Wrote:A good 4age head reqiures ALOT of work to completely reshape the ports, account for casting shift, reconfiguration of the valve seats geometry, valve modification etc.

So a guide would take longer to write than to do the head. Not that i would write a guide on how to do the ultimate 4age head as its what i do for a living lol.

CJ wants good NA head, not ultimate one. As I understand the goal - this must be 150-170hp street engine, not 190-220 hp racing circuit screamer.
Regrinding valve seats and valves, 3-angle job, castings cleaning and porting is not ALOT of work (compared to FIAT 8V DOHC head for example - with more than 3mm wall material removed just to match ports to intake). Toyota have good and precise castings.

The question is what are general DOs and DON'Ts for bigport 4AGE head.

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Messages In This Thread

4age bigport head: port & polish - cj - 10-16-2006, 12:04 PM

[] - cannabolic - 10-16-2006, 02:26 PM

[] - NoHachi - 10-16-2006, 02:30 PM

[] - adomz - 10-16-2006, 10:28 PM

[] - BenR - 10-18-2006, 07:36 PM

[] - alimonos - 10-18-2006, 07:48 PM

[] - BenR - 10-18-2006, 07:54 PM

[] - NoHachi - 10-18-2006, 08:09 PM

[] - jamiemirror - 10-18-2006 08:28 PM

[] - BenR - 10-18-2006, 08:39 PM

[] - BenR - 10-18-2006, 08:40 PM

[] - jamiemirror - 10-18-2006, 09:17 PM

[] - BenR - 10-18-2006, 09:35 PM

[] - jamiemirror - 10-18-2006, 09:52 PM

[] - Corey - 10-18-2006, 10:52 PM

[] - BenR - 10-18-2006, 11:12 PM

[] - Corey - 10-18-2006, 11:18 PM

[] - Os7213 - 11-08-2006, 07:08 AM

[] - Os7213 - 11-09-2006, 05:47 AM

[] - jamiemirror - 11-09-2006, 10:12 AM

[] - Os7213 - 11-10-2006, 08:20 AM

[] - Os7213 - 11-10-2006, 08:53 AM

[] - jamiemirror - 11-10-2006, 09:48 AM

[] - Os7213 - 11-10-2006, 12:33 PM

[] - NoHachi - 11-10-2006, 12:48 PM

[] - jamiemirror - 11-10-2006, 12:52 PM

[] - Os7213 - 11-10-2006, 01:08 PM

[] - jamiemirror - 11-10-2006, 01:22 PM

[] - Os7213 - 11-10-2006, 01:25 PM

[] - jamiemirror - 11-10-2006, 03:43 PM

[] - firehawk - 11-10-2006, 09:57 PM

[] - Os7213 - 11-11-2006, 04:10 AM

[] - BenR - 11-12-2006, 04:03 AM

[] - Os7213 - 11-12-2006, 09:24 AM

[] - BenR - 11-12-2006, 09:58 PM

[] - Os7213 - 11-13-2006, 12:52 AM

[] - BenR - 11-14-2006, 03:52 AM

[] - Os7213 - 11-14-2006, 06:52 AM

[] - jamiemirror - 11-14-2006, 11:09 AM

[] - BenR - 11-14-2006, 02:36 PM

[] - BenR - 11-14-2006, 02:48 PM

[] - Os7213 - 11-14-2006, 08:24 PM

[] - BenR - 11-14-2006, 11:00 PM

[] - Os7213 - 11-18-2006, 09:33 AM

[] - BenR - 11-20-2006, 03:13 AM

[] - Os7213 - 11-20-2006, 07:21 AM

[] - BenR - 11-20-2006, 04:52 PM

[] - Os7213 - 11-20-2006, 05:55 PM

[] - BenR - 11-20-2006, 11:27 PM

[] - Os7213 - 11-21-2006, 04:53 AM

[] - Corey - 12-03-2006, 01:31 AM

[] - apardal - 12-03-2006, 03:11 AM

[] - jamiemirror - 12-03-2006, 07:35 PM

[] - Corey - 12-04-2006, 09:23 PM

[] - BenR - 12-05-2006, 01:40 AM

[] - Os7213 - 12-06-2006, 06:46 AM

[] - eight-six - 01-20-2009, 03:33 PM

[] - oldeskewltoy - 01-21-2009, 06:05 PM

[] - totta Crolla - 01-21-2009, 11:49 PM

[] - oldeskewltoy - 01-22-2009, 12:14 AM

[] - ZDoman - 01-22-2009, 12:52 AM

[] - eight-six - 01-22-2009, 12:35 PM

[] - tolisspi - 01-22-2009, 01:15 PM

[] - totta Crolla - 01-22-2009, 06:59 PM

[] - oldeskewltoy - 01-24-2009, 06:32 PM

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