The reason I'm asking is I just bought a 1985 D-150 Prospector standard cab, long box with a 318-4bbl. The hood has been swapped, so no sticker to go off of, but the truck has a factory 318 with Quadrajet carb, iron intake and appears to be untouched, the local auto parts stores say they don't have a listing for a 318 4-bbl in 1985 in the D-150, all of the information/parts come up as a 2bbl version only. Internet search comes up with nothing but alot of generic information, most of it wrong, but no specifics. So here's the question, was their a factory 318 4-bbl option in 1985 D-150's or not? Original owner says that the truck came that way from the factory, originally a NM truck. first digits of the VIN are 1B7GD14T1FS. I come up with that decoding to a 318 2bbl on some internet sites, others omit the engine information altogether. Just curious if I have 360 heads n this engine or not, not picking it up for a few days, but getting anxious to know what I've got. Thanks!!

this is what my 85 d-150 stepside came with..

85-318 roller cam block/flat tappet cam

#302 heads/closed chamber fast burn swirl port heads 1.78/1.60 valves

cast iron BBD 2-v carb

727a stock high stall/lock up TC

9 1/4 3.21 sg

they did come with a 360 4-v,not sure about a 318 4-v

but in 85-88 318 4-v engines say in a gran fury or dippy cop car it did use a cast iron intake with a q-jet and would come with a roller cam 318 block but have a flat tappet cam AND 360 open chamber heads with 1.88/1.60 valves.

this is how I set my my truck up when I replaced the 85-318 with a 88 360 headed/4-v 318 cop engine with a 72 chebby q-jet. in 02' then in 07' I replaced the stock flat tappet cam and installed stock roller lifters and valve train hardware added a lunati roller cam with a set of comp spring droped on the stock heads.

I have now installed that roller cam in a 91 318 that was a TBI engine and has the #302 heads.

I ran the stock 360 4-v intake with a q-jet but it had a slight bog when the rear barrels kick in. so I went back to the LD4B intake which has the small ports for small port 318 heads,with the q-jet on a square/spred bore adaptor. bog is gone/lots of low end torque now.

I have found that with the stock 1-piece 4-v throttle bracket/rod/trans lever you can use the stock intake/LD4B/LD340/holley street dom intakes with very little mods to the stock linkage.

I just converted to a 3-piece linkage from a car with slight mods to the down rod for more adjustability on the truck.

maybe this will help you with some of the stuff on the truck.

first thing is pull a VC and ID the heads.. 360 heads will have a big 360 cast into the head under the VC on one end.

then you know whats under the 4-v intake. going large to small is the biggest disadvantage on this combo.

the small port LD4B worked rather well on the 360 headed 318 and really woke it up over a stock intake or the performer intake.

look on the front of intake for the date stamp cast iinto it, this would also help ID if it is all stock.

how does said engine run when you stomp on it?

also look on the side of the block to ID that indeed it is a 318 block and not a 360 4-v engine.

one side has the yr the other the cubic inch.

It's a 318, neutral weighted balancer, runs pretty good actually, single exhaust is holding it back for sure, but that will be changed soon.

I can see it needs a set of VC gaskets from here.

while they are off you can see if it is indeed a stock 4-v 318 in a truck.

it will have the 360 heads and cast iron 360 intake if it is indeed all stock.

I can post a pic of a stock 85 truck q-jet tall throttle/kickdown bracket to see if that is correct if you would like.

by the way does the q-jet have a mopar throttle lever with a stock mopar throttle/kickdown stud?

I believe that California emissions could of had a 318 4 barrel.

Your VIN indicates 2bbl (8th digit, "T").

4bbl is listed in the break-down, but needs to be a "U" for 1983 to 1987.

Source: Haynes Publishing Group, 1996.

Quadrajet and Thermoquad mentioned but the later only used on 360, 400, and 440.

Maybe someone blew up the original and threw this engine in. Bonus for you, wish mine was 4bbl.

Rain finally quite long enough that I was able to pull a valve cover today, big 360 cast in so I guess I know that I have a 360 headed 318, my truck is an early '85 so maybe it slipped through the cracks, but since the T in the vin says 318-2bbl, most likely someone switched engines somewhere along the line. 1985 was after all more than a few years ago Anyway, I know what I have now, doesn't matter if it was factory or not, it's an old truck and I know what I have to work with, know I just have to free up the exhaust and fix the sloppy steering and I'll be good to go. Thanks all!!!!

check the side pass side of the block for date casting,driver side for cubic inch casting.

this will ID what yr 360 headed 318 you have.

if it is a 85 up 318 block it will be the roller block with a flat tappet cam.

FYI..you then can use all of the stock roller cam hardware/valve gear and swap in a roller cam with out removing the heads from engine.

and by using the later model roller lifters that oil thru hollow PR, you are 1 step from swaping on a set of magnum heads.

nice up grades for the future projects.

the 360 headed 318s are a nice combo,650 carb/air-gap intake/roller cam/headers

here is my 88 360 headed 318 4-v in my 85 truck.

Good info to have on the roller cam swap, I have a 97 318 magnum on the stand in the garage that I got for the heads, I could use that cam and lifters and get the pre-magnum roller cam pushrods, re-use my 360 heads, and be good to go. I know I would need the fuel pump eccentric adapter or run an electric pump, and I'm sure that cam is pretty small, but I could always swap in a different cam later if I don't like it....

Would the lifter valley spider/lifter retainers, etc work in a pre-magnum roller cam block?