4age bigport head: port & polish

Threaded Mode | Linear Mode

4age bigport head: port & polish

10-18-2006, 08:40 PM

Post: #11

BenR

Member

Posts: 110
Joined: May 2005
Reputation: 0

jamiemirror Wrote:
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.

Toyota do not have good castings on the 4age lol.

And traditional 3 angle seats do not work, the stock 4age comes with 5 angle seats.

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

« Next Oldest | Next Newest »

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

Possibly Related Threads...
Thread		Author	Replies	Views	Last Post
	4AGE cylinder head plug removal	Ivan141	5	4,050	09-30-2023 09:47 PM Last Post: Ivan141
	Early tvis red top from e9 gti small or bigport?	Ryo	3	8,960	04-20-2018 09:14 AM Last Post: Ivan141
	10.8:1, 264/256° Bigport	nyberrg	4	7,843	06-12-2017 09:57 AM Last Post: nyberrg
	Small Port Swap	Alex170984	1	5,075	11-21-2016 01:46 PM Last Post: Alex170984
	Small Port 10.3 Pistons	Alex170984	1	5,243	10-25-2016 09:18 PM Last Post: oldeskewltoy

User(s) browsing this thread: 1 Guest(s)