North American Turbocoupe Organization



Differences in 88 TC shortblock and Merkur
RDOG Offline
Posting Freak
#1
Just got a Merkur shortblock for my new 88 TC project. From just looking at the block, everything seems to be the same with the exception of the oil filter facing back instead of straight out from the block. My question is, "Is this the same block or do I need to do any modificatioins to use this block. Is the angle of the oil filter going to be a problem? Need help asap cause this block is going in to the machine shop tommorrow.
1986 Turbo Coupe. Boport StageIII head, Boport 2.1, Performance Techniques 50 trim hybird, StageII.63, stinger 3" exhaust, Phenolic spacer, Boglog header,NPR FMIC intercooler setup, kirban fpr, bigrmotorsports fuel rail, diablo water meth kit, CAI, remote mount TFI, CHE rear adj control arms, MAC girdle, 8.8 rear disc, aluminum drive shaft, H&R lowerings springs Tbird Turbo Specific, y MAS!!
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Pete D Offline
Administrator
#2
I've heard of the oil filter set up on Merkurs but never seen one. I would think if you did some measuring you could determine any problems ahead of time. The rest of the block should be the same.

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NATO Member
88 TC X 2, 86 SVO, Main TC with K&N, 3"DP to 2.5"duals through Dynamax, Ric valve at 17+ and disconnected KS. Elite Bodega 16" chrome wheels. Autometer pod w/ A/F and Vac/boost gauges.140 mph Motorsports Speedo New engine: Total Seal rings and TRW pistons, ported and polished head w/ cc'd chambers,1.59"exhausts, SS valves, gutted upper, knife edged lower, A-230 cam, Race Engineering Adj Cam Sprocket, Crowlers, ARP head studs, and rod bolts. Walbro 255 HP pump and Kirban adj FPR, T-3. Centerforce II, KB subs and jack rails.

[This message has been edited by Pete D (edited 03-15-2002).]
Pete Dunham


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GT350R Offline
Senior Member
#3
The block is the same , depending on what year it is. Take a look at the oil pan bolts and see if they are all the same or if the four at the sides of the crank are bigger.

The early blocks, use a 4 piece cork gasket and have a different rear crank main and a different lower front cover as well as a different oil pan.

The later blocks have the same different parts and use a rubber gasket.

I just used an early block in my 87 and I had to JB weld the end cap vallys in and use bolts with nuts to secure the oil pan at the sides of the crank.

If you know for sure the XR motor is from an 87 -89 it should have the newer style block.



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GT350R
#1978 20th 2.3 Turbo T-top
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GT350R
(sold Sad ) 87 5speed, Motorsport head, [email protected]+2, [email protected], gutted or ported everything & all the typical junk.
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GT350R Offline
Senior Member
#4
Sorry, the early blocks will have bigger bolts at the sides of the crank for the oil pan.

The later block has all the same size oil pan bolts.
GT350R
(sold Sad ) 87 5speed, Motorsport head, [email protected]+2, [email protected], gutted or ported everything & all the typical junk.
84 Gt350 2.3T T-top
84 Turbo GT 418rwhp

My Garage
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RDOG Offline
Posting Freak
#5
Does this mean that I cannot use the rubber gasket from a later 88 or ranger?
1986 Turbo Coupe. Boport StageIII head, Boport 2.1, Performance Techniques 50 trim hybird, StageII.63, stinger 3" exhaust, Phenolic spacer, Boglog header,NPR FMIC intercooler setup, kirban fpr, bigrmotorsports fuel rail, diablo water meth kit, CAI, remote mount TFI, CHE rear adj control arms, MAC girdle, 8.8 rear disc, aluminum drive shaft, H&R lowerings springs Tbird Turbo Specific, y MAS!!
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RDOG Offline
Posting Freak
#6
Since the rear crank main is different, do I just have to use a Merkur pilot bearing or do I have to change the crank too
1986 Turbo Coupe. Boport StageIII head, Boport 2.1, Performance Techniques 50 trim hybird, StageII.63, stinger 3" exhaust, Phenolic spacer, Boglog header,NPR FMIC intercooler setup, kirban fpr, bigrmotorsports fuel rail, diablo water meth kit, CAI, remote mount TFI, CHE rear adj control arms, MAC girdle, 8.8 rear disc, aluminum drive shaft, H&R lowerings springs Tbird Turbo Specific, y MAS!!
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GT350R Offline
Senior Member
#7
The crank is the same. just the front and real oil pan sealing sections are different.

It can be used , but you will have to do some work. I just did it.
GT350R
(sold Sad ) 87 5speed, Motorsport head, [email protected]+2, [email protected], gutted or ported everything & all the typical junk.
84 Gt350 2.3T T-top
84 Turbo GT 418rwhp

My Garage
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Dan E Offline
Posting Freak
#8
Quote:Originally posted by GT350R:
The crank is the same. just the front and real oil pan sealing sections are different.

Does it use the two piece real oil seal then ?



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Dan Eaves
88TC 5spd, Crower 5.5" Sportsman Rods, Short Wiseco Pistons bored .030" Over, Ported Head with Polished Combustion Chambers, Gutted & Polished Upper, Ported & Polished Lower, Polished T/B, Ported E6, SVO T3 .63AR Turbo, Bosch Bypass Valve, 3" DP w/No Cat, 2 1/2" DynoMax single cat back w/DynoMax Super Turbo Muffler, RR Cam, K&N in Fenderwell, Gillis Boost Valve, Centerforce I Clutch, Removed A/C, Polished Wheels, Polished Valve Cover, Polished Crank and W/P Pulleys, Walbro 255LPH HP Pump, Kirban Adj FPR, and the DAMN Heater Core is new too !

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Dan Eaves
88TC 5spd Vermillion Red, Polished...everything...
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