Pontiac Heads # 10045449

[4C FED]

Re: Pontiac Heads # 10045449

OK, so you guys that haven't ordered your rockers are gonna be pissed.

I called Jesel to ask about the offset change for the intakes. No problem, I could go to .550 offset.
While looking at my invoice from SDPC I noticed that I was charged $1084.26 :rant: not the $775 listed on their website.:squint:
I called & talked to Cary about the offset change & the difference in price. They're going to order another set, .550 offset, & he said that Jesel had a price increase on Aug 1, & that SDPC has not updated their web pricing yet. He said he would credit the difference back to my CC, but I don't know if that will apply to future orders until they change their web pricing.

Get 'em while you can @ the $775 price.

 

[Syborg Twin Turbo]

Re: Pontiac Heads # 10045449

Have you confirmed that these are indeed the correct offset

OK, so you guys that haven't ordered your rockers are gonna be pissed.

I called Jesel to ask about the offset change for the intakes. No problem, I could go to .550 offset.
While looking at my invoice from SDPC I noticed that I was charged $1084.26 :rant: not the $775 listed on their website.:squint:
I called & talked to Cary about the offset change & the difference in price. They're going to order another set, .550 offset, & he said that Jesel had a price increase on Aug 1, & that SDPC has not updated their web pricing yet. He said he would credit the difference back to my CC, but I don't know if that will apply to future orders until they change their web pricing.

Get 'em while you can @ the $775 price.

 

[4C FED]

Re: Pontiac Heads # 10045449

I'm going by a post that Nightdiver made regarding his Pontiac setup.
In the post he indicated he used .500 offset intake rockers along with the offset lifters to get adequate clearance around the pushrod.

 

[4C FED]

Re: Pontiac Heads # 10045449

I finally got the replacement set.
There are some issues & I took some pics. Just can't find the stoopid USB camera cable to download them. I'll post when I find the cable.
The rocker kit includes everything you need to setup for correct stand height & pushrod length & 2 Torx bits for the included hardware.

Here are the problems I have:

Stands: Holes in stands don't all line up with head. I can shift the stand one way & get 3 holes to line up & the rocker tips to line up with valves.If I shift it the other way to get the other three bolts in, the rocker tips don't line up with the valves very well.
I tried the stand on the Bowtie heads I have & the problem is the same, so it's not a head problem.
I will have to call Jesel on Monday to ask about this. If they don't have an answer, I'll probably have the machine shop @ work slot 3 holes on the stands enough (~.150) to fit the bolts.

Rocker offset selection: You should really measure how much offset you'll need prior to buying. The amount of offset depends on how much porting has been done on the head. While the .500 offset intakes are good ( I probably could have used the .250 offset), and the 0 offset exhaust will work, I would have liked a little offset on the exhaust. I'll need to remove ~.1-.125 to clear the valve cover rail on the 2 outside ex. ports.

 

[4C FED]

Re: Pontiac Heads # 10045449

Pics:
http://pg.photos.yahoo.com/ph/rbippus@sbcglobal.net/album?.dir=/359escd

 

[canadian]

Re: Pontiac Heads # 10045449

The other option is using offset lifters to help the alignment.

 

[BigAl...]

Re: Pontiac Heads # 10045449

this is an interesting thread, I had the same issues about 16 months ago, I'm using the bowtie 4883 heads (23deg). I was lucky enough that my friend who ownes a machine shop that does all kinds of race engines let me go around and pickup a bunch of jessel rockers and place them on my heads until I found a set that fit just right.

I noticed some of you are talkn about using a solid camshaft, I too am using a solid custom grind and have some suggestions.

first off if you plan on using a solid cam with the stock block you WILL HAVE PROBLEMS, (thanks to Nolan the raging canadian) this problem was brought to my attention. The average solid lifters expose the oil galley at full lift!!! (allowing oil to bleed back to the pan) you must buy a lifter that shrouds the roller alot more than say a crane or a comp lifter (trust me I confirmed this when I used the drill to prime my motor and the guage fluctuated like crazy as I turned the crank). Needless to say I was pissed. (this is not an issue if you use a bowtie block)

Second I see you guys are ordering the rockers with 1.XX ratio, how exactly did you guys come up with this ratio without flowing your heads? If these heads are ported in order to flow somewhere over 320 you're probably gonna need some serious lift (say .670 or well above that) you should consider flowing your heads before ordering any parts! (it cost me less than $100 to flow my heads on a superflow 1020) another problem is that there is not alot of core options for v6 (even fire) cams so alot of the lift has to be made up on the rocker. I spoke with jessel and they told me he wouldn't run more than 1.85 on the street.

some of this info is irrelevant if you just want to make 500hp (heck you could make that with vortecs) but if you want max power then chances are your gonna want big flow, big lift yadadada.

ok that's enough typing for now, please excuse the typos (this thing should have spellcheck hehehe)

BigAl...

 

[4C FED]

Re: Pontiac Heads # 10045449

I Second I see you guys are ordering the rockers with 1.XX ratio, how exactly did you guys come up with this ratio without flowing your heads? If these heads are ported in order to flow somewhere over 320 you're probably gonna need some serious lift (say .670 or well above that) you should consider flowing your heads before ordering any parts! (it cost me less than $100 to flow my heads on a superflow 1020) another problem is that there is not alot of core options for v6 (even fire) cams so alot of the lift has to be made up on the rocker. I spoke with jessel and they told me he wouldn't run more than 1.85 on the street.
BigAl...

It's so hard to finds a decent machine shop anymore.
I have tried to get my heads flowed.
One shop I took my block & heads to said they'd do it & finally after a month they told me they were done but that they would have to fax me the flow sheet because the shop where they port & flow the heads is across town. OK no problem.
After several weeks of waiting I called & they said they forgot to charge me for the flow work. Well after I looked & my block & saw that they forgot to install the rear cam plug & my bearing clearances weren't right they told me I wouldn't have to pay for the flow work, but that they would still have to fax the flow sheet to me. I even offered to pay fro the flow work. After several more weeks of still no flow sheet, I gave up.:rant:

Now I have 3 different heads (McCoy Vortec's, Pontiac & 18 deg Bowtie) at another shop that specializes in heads. He told me about a week. I called after 2 weeks, he said the flow bench developed a leak & they were working to fix it. He told me he's call when they were done.:roll:

 

[BigAl...]

Re: Pontiac Heads # 10045449

that really sucks, I hate these shops that just want to take your money for nothin, I would go down there and p/u your heads before they accidently loose them.

are you using a stock or bowtie block?

BigAl...

 

[4C FED]

Re: Pontiac Heads # 10045449

that really sucks, I hate these shops that just want to take your money for nothin, I would go down there and p/u your heads before they accidently loose them.

are you using a stock or bowtie block?

BigAl...

Stock block for now, running the Vortec's. Then switch those out for the Pontiacs.
Since the 18 deg. heads require different pistons, I'll go to a bowtie Bowtie block. That's the plan anyways.

What lifters do you recommend to run with the stock block?

BTW, that Air/Air IC I bought from you was :tup:. My truck was screamin' when I had it running last year.

 

[gt67sy]

Re: Pontiac Heads # 10045449

Know this is an old post but I just want to bump it up to see if anyone had anything new to add to the Pontiac heads post. Does anyone know anyone that may have the rockers or stands laying around? Does anyone know if jesel still makes these and would anyone have a part #? Does anyone know if a place like T&D would make them? I've been told u can buy the v8 stands and cut and weld them? Any info would help.

 

[Silly]

Re: Pontiac Heads # 10045449

Does anyone know if a place like T&D would make them? .

Granted this discussion is about a 23* degree head and mine are 18* but I run T&D.

 

[gt67sy]

Re: Pontiac Heads # 10045449

Mine are 23 yes. Do u mind me asking what u paid for them and what ratio are u running and what offset are they?

 

[gt67sy]

Re: Pontiac Heads # 10045449

Silly what are u running for pushrods? And what are u running for lifter? Offset lifter?

 

[Windedv6]

Re: Pontiac Heads # 10045449

The GM Bowtie 18* and the 23* heads are different. The "Pontiac" head is different yet. The last I heard (a couple of years ago) Jesel was no longer in the Pontiac V6 parts business. You can get Brodix head parts from T&D, but the Brodixs are not compatiable with the Bowties or the Pontiacs.

John

 

[gt67sy]

Re: Pontiac Heads # 10045449

So John do u think someone will make them for u? I figure somewhere someone has the cad drawings to make these? Would u be able to get a v8 set to work? Or are these heads hopeless?