Just to amuse my curiosity I called Delta cams and asked what that price was for a 260 grind on a new camshaft plus the lifters on a 3.1L... 100 bucks he said!! What the hell I got a comp cam one a few months ago that was basically the same adv. durration and it was 180 bucks with lifters..

Has anyone gotten these cams from Delta cams for a 2.8 or 3.1L???

 

bump bump.. these are the correct roller tip rockers right? saw them and there cheeper than buying SBC ones that are 3/8 since ours are 10mm. Paychecks burning a hole in my pocket..

http://www.summitracing.com/parts/CCA-1414-1

 

i have those on my 3.4. i must warn you though, make sure the retainer wont hit the guide with the seal on it and make sure you wont hit coil bind. i did that on my old 2.8 dime and wiped 3 cams before i figured that out lol

 

is it possible to run those rockers ok?? Just check for the binding/retainer being on good before I put it back together??
ever have clerence issues with them hitting the valve covers and also did it make any inprovement with the cam you put in?

 

no clearance issues with the valve covers, depending on the cam you are going to prolly hit the guides ~480 lift. coil bind depends on the springs you have. they make a small difference, not too much to notice. but since you are porting the heads you will notice a difference

 

Anytime you swap out a cam with higher than stock lift you should always buy a set of springs to match and keepers/retainers. I almost went with this cam but decided to go with the melling mtc-5 cam for my camaro and I'll be going with this cam in my fiero gt with a 3.1. Those rockers in the link you posted are the correct one's but with the lift the 260 grind cam has I would go with the 1.52 rockers http://www.summitracing.com/parts/CCA-1413-1/ I'm going to be running these in my fiero also. You won't have any valve cover issues with the 1.52 but you might with the 1.6 if you decide to go with them and that can be corrected with fiero valve covers. I've also heard that a torque converter off of an s10 works well with these cams...

 

ok thanks.. i already have new retainers, locks, springs and the comp cam/lifters. but i was thinking i could send back the comp cam and get the $$ back, then buy the delta one insted. Since even when i pay the shipping on the comp cam/lifters to return them ill still save like 70 bucks.

 

I would send the cam back and get the delta for sure if your gonna save that much. Heck you can put that towards another upgrade

 

yea thats what im thinking!!! I gotta squeeze every penny for this car.. parts cost so freaking much!

 

I have a delta 260, dave also had at least 1 delta in at least one of his engines, and I believe a few others have run them, they regrind used camshafts or something like that, so its cheaper than "new" but imo reman is just as good as new.

 

Delta will grind pretty much whatever you want, they did the roller cam in my 3500 for pretty cheap although i had to send them a stock solid core to start with.

 

i just asked them what a 260 grind and lifter set was for my car? Am i going to have to send them my camshaft or will they use there own stock. I didnt think to ask them that?

 

There'll be a core charge, refunded when you return your old cam.

Delta is a regrinder, but you can ask them to use a new core on most applications.

 

So on my 1991 3.1 v6 Camaro if I wanna rebuild my engine for better mpg not looking for power if it takes away from my Mpg.

260 grind cam
1.6 rockers but I'm ok with buying fiero valve covers but with 1.6 rockers do I have to put 89 gas or can I still put 87?
Rebuilding 3.1 to 3.2 I need to pass smog tho is this 260 grind cam smog legal.

 

The cam wont hurt mpgs if you tune the ecm. A 3.1L is speed density so you really need to tune it. I still have some good mpg tunes with my cam if you ever need a tune. If you really wana put 1.6 rockers in it them that will help also but like i said before you should tune the ecm.

You can still run 87 octane in the car regardless. Our lil motors have some pretty low compression so knock isnt a big factor on a N/A car as long as you keep a eye on it when tuning. Obvously if you dump tons of timing into the engine or lean out the fueling a ton youll see knock. You should really invest in a aldl cable to datalogg if you do those mods, IMO.

 

Hey I need another chip can you burn me another one? This chip will be for the 3.4

 

is it for the same ecm/$88 mask? You really need to get a aldl cable so I can tune it good.

 

im trying to get a parts list for the 3.1 to 3.4 build can we make a thread on parts needed. this is what i have so far.

Parts List:
1. Fiero Valve Covers
2. 260 grind and lifter set (delta cams)
3. Fuel Injectors (south bay) ~ $170
4. Water Pump ?
5. 1.6 rockers (what brand or link?)
6. new retainers,
7. locks,
8. springs
9. rods

what other parts can i start buying to start rebuilding the 3.4 to get it ready?

 

1.52 rockers or 1.6 ?

which would get better mpg ? lol

 

for the rockers its up to you if you wana spend that much. When I added my cam I just reused the stock 1.5 rockers and was still happy with the gains.

I wouldnt waste any cash on a new water pump unless you know its bad.

Get a timing chain kit and replace it while its apart.

What fuel injectors did you get? Size???

Is the 3.4L in good shape? Then why get new rods. If everything looks good. Just keep the block intact and use all your stuff off the 3.1L

Since you have a extra set of heads now...ever think about porting them?? Its no too hard. I was a newbie when I did mine. And with some guidence and pics here on TGO i got them done.

 

are u taking the heads to a machine shop to have them rebuilt ?
if not get 1.52 rockers , if u are having them rebuilt at a machine shop supply them with the lift numbers for the cam + the 1.6 rocker and have them check the heads for valve guide to retianer clearance and machine them as necaasary so u dont have interference issues


and honestly the roller rockers are a waste of money ,

get a set of these 1.6 stamped rockers

http://www.summitracing.com/parts/su...make/chevrolet

or this set of steel stamped roller tip 1.6 rockers for 4 bucks more

http://www.summitracing.com/parts/pr...make/chevrolet


most ppl think u need to buy the 10mm to 3/8's conversion studs to use regular small block chevy rockers on the v6.

well u dont i attached a pic to explian

first of all eithere set of rockers will come with a new pivot ball ( circled in red ) and a new locking nut , to use these rockers on the v6 u simply take the pivot ***** that come with the rockers and put them to the side, same with the nuts. u wont use either.

what u do is either buy 12 new piviot ***** for the v6 engine or just reuse the pivot ***** off ur stock rockers IF THEY ARE IN GOOD SHAPE

and then u just reuse the original locking nuts


this gives u roller tip and 1.6 rockers for a fraction of the cost of buying ones made for the v6


the only difference between the v6 and v6 rocker is the piviot ball has a different sized hole in it for the stud , other then that they are identical




or u can do what i did on my v6 car and buy a set of 8 1.52's , and a set of 8 1.6's
unfortunatly they dont sell them in sets of 6

on my engine i run a 1.6 on the intake side , and a 1.52 on the ex side

depending on cam specs u might do that the other way around

 

Dave i think hes should just buy me old piping and turbo it while hes at it. Thatll wake his car up

 

he is in cali it will never pass inspection
on the other hand i may be interested in the piping

 

Yea good point there. I forgot hes in cali. Nothing a little n20 can help though.

 

I called delta cams and they said I can't use a 260 delta cam with the 3.4 ?

 

they said that cause there cam cores they grind are not the right cores to use in a 3.4 with sfi.

if u have to tell them u are doing a 3.4 swap into a 3.1 car and that u do not need the cam sensor

now if u had a 93/94 3.4 powered f body the cam they have wouldnt work cause u would no longer get a cam sync signal, u would have to send in the cam out of the 3.4 and have them regrind that one for it to work properly




in other words yes u can use the 260 cam in the 3.4 in ur application