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1998 S70 T5 cylinder head interchange

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

Bigssherod
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Year and Model: 1998 S70 T5
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Bigssherod

1998 S70 T5 cylinder head interchange

Post by Bigssherod » Fri Jul 13, 2018 10:09 pm

Hello I am new to this form I have a 1998 Volvo S70 T5 with a 2.3 Turbo my head is Warped over 12,000 I am looking for a cylinder head and I was wondering what year and model of car will interchange with my 2.3 Turbo

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RickHaleParker
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Re: 1998 S70 T5 cylinder head interchange

Post by RickHaleParker » Fri Jul 13, 2018 10:46 pm

The core charge on these heads is ~$400. Are you planning to swamp it with a pick-in-pull? With a pick-in-pull you would need to check the head for flatness, so there no getting around the $100 for a precision straight edge. If you got a lot of elbow grease and willing to work like an old school man. It is possible to true an aluminum head under the shade tree with simple homemade tools and a precision straight edge. Wet and dry sandpaper will cut aluminum, cut and true the head with wet and dry sandpaper planes.

The head is Volvo part number 8111178. Part number 5003932 with valves included.

Volvo 850 2.3l 5 cylinder Fuel Injected Turbo 1994, 1995, 1996, 1997
Volvo 850 2.3l 5 cylinder Turbo 1995, 1996, 1997
Volvo 850 2.5l 5 cylinder Fuel Injected 1993, 1994, 1995, 1996, 1997
Volvo 850 2.5l 5 cylinder Turbo 1997
Volvo C70 2.3l 5 cylinder Turbo Convertible 1998
Volvo C70 2.3l 5 cylinder Turbo Coupe 1998
Volvo C70 2.5l 5 cylinder Turbo Convertible 1998
Volvo C70 2.5l 5 cylinder Turbo Coupe 1998
Volvo S70 2.3l 5 cylinder Turbo 1998
Volvo S70 2.5l 5 cylinder Fuel Injected 1998
Volvo S70 2.5l 5 cylinder Turbo 1998
Volvo V70 2.3l 5 cylinder Turbo 1998
Volvo V70 2.5l 5 cylinder Fuel Injected 1998
Volvo V70 2.5l 5 cylinder Turbo 1998
Volvo V70 XC 2.5l 5 cylinder Turbo 1998
Last edited by RickHaleParker on Fri Jul 13, 2018 11:11 pm, edited 5 times in total.
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.

Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.

Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0,
Plant Torslanda Sweden.
----------------------------------------------------------------
1997 S90, B6304S, AW30-42, Bosch Motronic 4.4 - Sold

Bigssherod
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Year and Model: 1998 S70 T5
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Bigssherod

Re: 1998 S70 T5 cylinder head interchange

Post by Bigssherod » Fri Jul 13, 2018 10:59 pm

Wow thank you so much for your help

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FLXC90
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Re: 1998 S70 T5 cylinder head interchange

Post by FLXC90 » Tue Jul 17, 2018 2:31 am

One caution regarding the part number and applications. If you get a head from a non-turbo car, swap the exhaust valves from your turbo head. They are sodium filled in order to deal with the heat from the turbo.
Current Volvos:
1998 V70 T5, 112k sat 5 years, still in mechanical coma (finally at the top of the pile )
2004 XC90 T6 AWD: 186k, 60 on transaxle ( traded in )
1998 POS70 N/A: DD/training aid, 236k but really about 240k, I think...ABS module( passed on to son who sold it)

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erikv11
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erikv11

Re: 1998 S70 T5 cylinder head interchange

Post by erikv11 » Tue Jul 17, 2018 8:39 am

Any 94-98 turbo engine, from an 850 or x70.

As per FLXC90, a non-turbo head is not a direct swap. Note that people have done the direct swap, but I wouldn't unless you swap in the exhaust valves from a turbo head. HPT to LPT doesn't matter, they use the same valves.

I would look for for a turbo head, it's pretty simple what works and they should be pretty common in Oregon. Why move over 10 exhaust valves if you don't need to.
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 285k
'06 S60 R, 160k
gone: '96 NA 850 210k, '98 NA V70 182k

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