TR Benj
Printed From: CorrectCraftFan.com
Category: General Correct Craft Discussion
Forum Name: Off Topic
Forum Discription: Anything non-Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=11030
Printed Date: December-27-2024 at 3:42pm
Topic: TR Benj
Posted By: eric lavine
Subject: TR Benj
Date Posted: June-30-2008 at 12:05pm
| I need help and Tim Cochran on these heads, when i bought them 5 years ago i was told they were GT's but i dont think they are, I re-sold them and recently got them back. They are new, slant plugs, hardened seats, 2 slashes on the side, definitely Stainless valves and the intakes are 1.840 and the exhausts are 1.531 the only other markings i found are 5D18 MM also there are 3, 1/2 brass plugs in the valley, why the stainless and the brass plugs im wondering also? |
Replies:
Posted By: TRBenj
Date Posted: June-30-2008 at 12:20pm
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I cant ID them by the casting #, but Im sure someone else can. Theyre definitely not GT40's if they dont have 3 bars. With SS valves and brass plugs, Im guessing theyve been reworked for marine use. ------------- |
Posted By: eric lavine
Date Posted: June-30-2008 at 3:00pm
| they were brand new, so i know they were not re-worked |
Posted By: eric lavine
Date Posted: June-30-2008 at 4:00pm
| talked to a Tom at FMR, and he told me they are GT40 marine heads, 69cc chamber and the cast number i found is F3JECA, ant they do only have 2 casting lines on the ends, they are not the p"s |
Posted By: TRBenj
Date Posted: June-30-2008 at 4:10pm
Interesting. Ive never heard of special GT40 "marine" heads- I had assumed them to be the same as automotive GT40 heads that came installed on the Mustang Cobra and Ford Lightning in the early 90's, and the 5.0 Explorer through '96. Those have smaller chambers than the ones youre quoting (~64cc, IIRC) and have 3 bars in the casting, though the 1.84/1.54 valves are consistent. GT40p heads have 4 bars and arent that closely related. Can anyone with a factory PCM 351w HO (ProBoss or GT40) confirm how many lines are in the casting? Here are what the lines on the P heads look like for reference:  ------------- |
eric lavine wrote:Posted By: bkhallpass
Date Posted: June-30-2008 at 4:24pm
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Funny, I just tried to take a look at mine, but you can't get in there to see the marking on my V Drive. BKH ------------- Livin' the Dream |
Posted By: M3Fan
Date Posted: June-30-2008 at 5:16pm
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I'm 99.99999% sure mine have 3 bars. ------------- 2000 SN GT40 w/99 Graphics/Gel 2016 SN 200 OB 5.3L DI https://forum.fifteenoff.com |
Posted By: quinner
Date Posted: June-30-2008 at 6:48pm
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I have 5 bars at the moment,
"Can you hear me now" ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1143" rel="nofollow - Mi Bowt |