smithtc

iTrader: (5)

iron L98 heads 083 for sale
ported, surface milled & opened up for 2.02/1.60 with performance valve job
machined for screw in studs. guideplates or self aligning rockers required.

they are taking up space, sitting for a while. make a reasonable offer.

$300 shipped or best offer

Ed1LE

iTrader: (39)

Who did the work and mileage? Any pics?

smithtc

iTrader: (5)

I did the porting. I'm an Engineer and I used that experience to approach porting in a technical manner. There is plenty of room for additional porting if one was interested.

Machine shop did a little clean up for me, plus the machining for screw in studs and valve spring seats, valve job, etc A performance place that doesn't exist anymore after the recession hit. These were done about 10 years ago.

Miles? Probably about 5000 miles. Not much, but I don't recall exact.

I'll see about getting some pictures.

smithtc

iTrader: (5)

Flow numbers when they were in stock condition then ported with Manley Valves 2.02/1.6

Intake
Lift_______CFM
0.097...52
0.194...101
0.291...145
0.388...167
0.485...179
0.582...185

Exhaust
Lift_______CFM
0.075....35
0.150....62
0.225....87
0.300....105
0.375....106
0.450....106

2.02-1.60 w/ Manley valves

Lift......Intake....Exhaust
.100....56.43.....48.22
.200....113.36...105.54
.300....163.94...146.51
.400....191.16...166.22
.500....197.16...170.49
.600....202.70...171.34

89-S-dime

iTrader: (3)

did you notice a differences in performance after porting was done?

smithtc

iTrader: (5)

Short answer...yes.

89 GTA 350 with 700r4 and 3.27 gears. Street tires, no drag radial.

Stock block high mileage.
1-5/8 headers and exhaust
Lingenfelter Runners, ported plenum, and intake.
Stock L98 camshaft, injectors, a hypertech chip. I believe .415/.430 stock don't recall duration on the cam.

I had these heads I'm selling from another car and was porting and getting the work done at the machine shop. I got tired of waiting for the machine shop to turn them around so I took off the original 083 heads on the car...did a quick bowl blend and reinstalled same day. same rockers, valve springs, etc. Car ran 8.48sec in the 8th at around 81-83mph (don't recall exact mph).

Finally got the heads back from machine shop and installed. Car went from consistent 8,8s before any porting at all to 8.6s, but never eclipsed the 8.48. Thats the best my memory serves up.

Had plans for additional changes but life happens... Car needed an upgrade in camshaft or I never really got a chance to tune or make other small changes to take advantage. Actually, I was planning to build a new short block and use the Hot Cam or 219 LPE cam to go with these heads. Just never happened.

I still have the 083 heads with just the bowl blend as well....

Irocan88

iTrader: (2)

PM sent

Irocan88

iTrader: (2)

Have you already sold these heads? I haven't heard anything back from you.

smithtc

iTrader: (5)

Still have the heads...

I pulled them out of storage to take some pictures and they have some surface rust in some areas I wasn't expecting. I'll have to clean that up before I can sell them...

Irocan88

iTrader: (2)

Don't mind surface rust, they would be gone through thoroughly and be sitting for a bit until I get back to the states anyhow. Can you send me some pictures to my email? fuentesadan83@gmail.com thanks!

Jdinmd

I'd be interested in them "as is" too. How about some pictures please? Thanks

80s Poncho

Do you still have these heads? If so do you have paypal?

Irocan88

iTrader: (2)

Good luck man , I've tried multiple ways of contacting him to no avail. I was and have been ready to buy them from him but seems he lost interest in selling them now.

Jdinmd

Sounds like they might be in worse condition than he thought.

smithtc

iTrader: (5)

Still for sale. Life got in the way (moving, work, divorce)
So here are some pictures.

Ty92Z

iTrader: (11)

Pm sent