Topic: Looking at a 1989 F250 with 5.8
From: Dubois PA
Registered: Nov 2000
posted 04-28-2002 06:46 AM
The truck is a Lariat with 5.8, C-6, 4x4, extended cab and 8' bed with 57,000 miles. Since 1992 it's strictly been used to haul a camper. My only concern is the 5.8. I'd rather have a 460, and I'm wondering what kind of performance and gas mileage I can expect. Also, did the 5.8 have EFI in 1989? I suspect this thing's a real dog, so what is available to significantly increase power without a motor swap?
Are any of you guys running stroker windsors in your trucks?
Also, I have an EFI 460 in my garage. What would be required to put it in there?
Thanks in advance,
'68 mustang 351 clevor- [email protected]
'67 Stang, 351W [email protected]
'69 351C [email protected]
'78 Pickup [email protected]
'79 Pickup 460 ET=??
Registered: May 99
posted 04-29-2002 08:06 AM
Larry,I think the truck would be alright. It should have 4.10's in it,so it will pull ok. It is a speed density EFI.
As for the 460 swap,you'll need the mounts,the ECM, and the bellhousing,with associated parts for the trans,along with the exhaust system. You may need to you with a bigger radiator too.
If I recall right,the 5.8 was 210/325,while the 7.6 was 230/385. Not a huge leap in power. The 351 will give you about 13-14 mpg,while the 460 will be closer to 10-11.
You could equal the output to a stock 460,by probably just opening up the exhaust.