86 951 Driver

How much would it cost to rebuild a standard 8 valve maybe with higher compression pistons?

Calmchaos

Depends how far you want to go...

choinga

"One Million Dollars......"



From what I've seen...anywhere from $2500 to $10k.

Chads996

Minimum $6000 to $14000+ for a full race rebuild. Can be done more cheaply with a replacement engine or buying the $3K i parts and doing the build yourself. Here's a breakdown for reference from an S2 rebuild (parts would be slightly cheaper on an 8v)

OPTION 1 - Complete S2 3.0L Engine Rebuild


Block work: Deck, bore, hone, & drill oil ports......................... $1400.00
Head work : Pricing per Lindsey Racing (valve job & machining).........................$1000.00
JE Pistons from EBS 104.5mm forged / coated (x4).........................$735.00
Pauter Con rods (Forged-Lindsey).........................$1099.00
Crankshaft Balance, drill, polish (LTW?)(Lindsey).........................$350.00
Oil Pan Baffle Includes installation (Lindsey).........................$150.00
944 107 014 11-M100 Oil Pump.........................$607.00
928 103 143 15 rod bearing set STD 928/944/S/S2/T/924S/968.........................73.00
944 101 901 00 main bearing set STD 924S/944 85.5/S/S2/T/968 1.........................184.50
944 101 121 10 Balance Shaft bearings 4.........................$65.00
944 103 902 60 piston ring set 104.00mm 104x1.75x2.0x3.0.........................141.50
944 102 219 04 balance shaft belt 924S/944/S/S2/T/968.........................32.30
944 105 323 02 timing belt (cam belt) 944S/S2/968.........................23.00
944 100 901 06 head gasket set 944S2 89-91/968.........................209.50
944 100 901 03 engine case gasket set 924S/944 85.5-/S/S2/T.........................165.00
LC 574 Loctite 574 Orange 50ml as needed.........................21.50
944 101 121 10 bearing half rear 924S/944/T 87-/S/S2/968.........................27.20
944 102 025 07 tensioner roller toothed 924S/944/S/S2/T/968.........................22.65
944 102 277 06 idle roller 924S/944/S/S2/T/968.........................28.50
944 105 241 02 timing belt roller 944S/S2/968.........................26.00
944 105 241 03 timing belt roller 46mm 924S/944/S/S2/T/968.........................28.50
0 280 130 026 temperature sensor 944, 965 91-.........................18.25
944 105 049 01 chain tensioner 944S.........................349.00
928 105 642 06 exhaust valve 33mm 968/928 87-/944S/S2.........................200.00
944 104 327 51M valve guide +.001 4 valve eng manganese.........................72.00
944 606 170 01 hall sender 944S/928S4.........................145.00
944 105 907 03 valve spring 944S2 1989-91/968.........................383.20
ARP 4208 head stud set 968/944S2 w/nuts & wash 1 195.00.........................195.00

Grand Total $7556.60


C.

Eric_Oz_S2

I'd add 2 x knock sensors as well.

white924s

wouldn't the exhaust valves, valve guides, and springs be included in the head rebuild from Lindsey? I thought that they're stage 1 head package (~600 + options for 8v) included that stuff.

Also, if you're not building a high boost turbo or all-out race engine, stock con rods can be used to keep costs down. That should pull a couple grand out of the estimate, but then again, that's not including labor to take the old engine out and put the new one in.

Does anybody know how long that would take a competent shop, on average?

tk's944

It cost me $1600 to do a stock rebuild.

Smoker324

Hey Tony,

What did you have done?

-Dan C.

67rschev

88 pistons that are 10.2 are out there . Took me around 4 months to source a set in the tolerance group i needed for a reasonable price . Ya just gotta be persistent and get to know people . Most sellers wanna sell you the whole motor . EvilBAY UK occasional will have a sets of Euro 10.5 pistons listed .

Smoker324

Hey Tony,

What did you have done?

-Dan C.

Fluidplay

Add in approx. 40+hrs ($3,500-$4,000+) of shop time to Chad's parts list if you're not doing the work yourself...

tk's944

Full rebuild with engine taken out.

I bought a rebuild kit for $900. Came with all gaskets, bearings, valve guides and piston rings.

I had my head done by a family friend for $100 included machining the surface flat. I got lucky and saved a lot there.

Polished the crank and checked the pistons at a shop for $100.

Got all new coolant hoses, engine mounts, belts, rollers, and some other things that made the total around $1600.

I guess the actual rebuild only cost me around $1200 then I had to buy other things.

87 944 C

if you were closer to me and didn't wanna do the work yourself i'd do it, but i'm in nj/pa not exactly close.

tony when you did the work, did you have the block machined or anything or just place new parts into it?

tk's944

No my block was fine, the tolerances where all within spec. Used a dingle berry hone and did a very quick spin in the bores to get the slight glazing off.

86 951 Driver

I figured these engines cost about 1500 to rebuild. Granted my rings are shot so it would most likely have to be bored over a little then new rings and pistons put in.