Mark VIII engines [Archive] - MercuryMarauder.net Forums

Motorhead350

11-01-2010, 10:14 PM

Is there any difference between our factory engines and these? At least the bottom end? I know the intake looks different, but what is the difference for the 22 horsepower? I know they had 280 and we have 302.

Would this engine work?

Check this out and let me know.

http://cgi.ebay.com/ebaymotors/NEW-LINCOLN-MARK-VIII-4-6-LITER-DOHC-32V-ENGINE-93-95-/290473446697?pt=Motors_Car_Tru ck_Parts_Accessories&hash=item43a1910d29#ht_500wt_9 75

ctrlraven

11-01-2010, 10:28 PM

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=390222998428&crlp=1_263602_304642&ff4=263602_304642&viewitem=&guid=9c5f00a012a0a06c1b77efa7f f620a78&rvr_id=161709878992&ua=WVF%3F&itemid=390222998428

http://www.latemodelrestoration.com/item/MMR-400900A

boatmangc

11-02-2010, 03:22 AM

You only want the Mk8 motor if it is the Teksid block

Joe Walsh

11-02-2010, 04:16 AM

The cylinder heads are completely different...those older DOHC V8s had dual intake runners with both round and rectangular ports.
They also had the IMRC port actuators = PITA!

http://i984.photobucket.com/albums/ae326/JoeJWalsh/DOHCIMRCplates.jpg

They would only be good for the short blocks.

Zack

11-02-2010, 06:02 AM

Wont work Dom

FordNut

11-02-2010, 07:20 AM

You only want the Mk8 motor if it is the Teksid block

All of the Mk8 came with the Teksid block. But the block is really the only desirable part except maybe the crank (which is just like ours but it's not a weak link). The pistons and rods are just like ours (fragile), heads are different, intake is different...

fastblackmerc

11-02-2010, 07:28 AM

All of the Mk8 came with the Teksid block. But the block is really the only desirable part except maybe the crank (which is just like ours but it's not a weak link). The pistons and rods are just like ours (fragile), heads are different, intake is different...

Isn't the timing cover different also?

Zack

11-02-2010, 07:29 AM

Isn't the timing cover different also?

Yes, and the ideal cover for a Vortech cuz it has the good belt tensioner

FordNut

11-02-2010, 07:31 AM

Yeah, it's the older type with the "good" tensioner design. Valve covers are also different since they're not COP. I was just referring to mechanical differences rather than covers & cosmetics.

Motorhead350

11-02-2010, 05:26 PM

Thanks guys.

Seneca

11-02-2010, 06:47 PM

Yeah, it's the older type with the "good" tensioner design. Valve covers are also different since they're not COP. I was just referring to mechanical differences rather than covers & cosmetics.
my 98 mark8 long black was coil on plug like the mm. Not sure when they made the change valve covers still wont work though. the holes are in the wrong places. lol