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Pontiac Comp Cams Hydraulic Roller Lifters 857-16

 
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krisr



Joined: 29 Oct 2007
Posts: 606



PostPosted: Wed Nov 01, 2017 3:39 pm    Post subject: Pontiac Comp Cams Hydraulic Roller Lifters 857-16 Reply with quote

Hey guys,

I've decided to step up to a solid roller setup and have decided to not worry about going back to hydraulic. These would probably have 8-9000kms on them with hydraulic roller spring pressures (~130 seat / ~330 open) and are in perfect working order. Each roller still glides perfectly and not 1 of them is notchy which is expected for such little use. They would probably best work in a 455 or something that doesn't need to rev above 5500rpm, if you want to turn good revs then comp HR lifters are not for you. Will send anywhere in Australia for whatever an express post satchel costs.

$250 + exp post satchel.

Or come get them in Seven Hills area.

Kris
0410470088



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- 71 HQ Monaro, 400 Pontiac w/EFI, TH400
- 08 HSV GTS, LS3, 6spd auto
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LeighP



Joined: 17 Oct 2007
Posts: 5362
Location: Sydney, Australia


PostPosted: Thu Nov 02, 2017 5:01 pm    Post subject: Reply with quote

Now don't start tempting me........my 400 is supposed to be a stock build......its going into Peninsula Engine Services next week.....
Good luck....someone will get a good deal at that price. Smile

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Leigh
1969 Pontiac Firebird 400
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sms777



Joined: 04 Dec 2014
Posts: 53



PostPosted: Thu Nov 02, 2017 8:16 pm    Post subject: roller lifters Reply with quote

Any reason why you are going mechanical roller? I had two engines failed on me in the last couple of years due to owners insisting mechanical roller cams despite me advising them that they are not suitable for street engines. They demand around 240 pounds seated spring pressure with around 500 open. Not ideal for idling at traffic lights at 800rpm.
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krisr



Joined: 29 Oct 2007
Posts: 606



PostPosted: Thu Nov 02, 2017 11:22 pm    Post subject: Reply with quote

Am going mechanical roller because I intend on giving the little 400 some revs as the smaller motors in heavy tanks like mine need them. At the moment i'm still running the HR camshaft in a hybrid setup with bushed and pressure fed SR lifters until I get the new cam ground. It runs really well at 0.004" lash cold as i'd worked out the growth rate of my heads is 0.006", was told by cam grinder to run the valves at 0.006" x rocker ratio hot (1.65) to keep the lifter on the HR lash ramp. Currently running 180 on the seat and 490 open so springs aren't out of control, idles at 1000 and is super quiet! Checking lash every once in a while or if the valves sound differently is easy especially knowing the cold setting.

@Leigh I only went solid roller because Daniel @ Peninsula told me to grow a pair of balls Laughing

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- 71 HQ Monaro, 400 Pontiac w/EFI, TH400
- 08 HSV GTS, LS3, 6spd auto
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LeighP



Joined: 17 Oct 2007
Posts: 5362
Location: Sydney, Australia


PostPosted: Mon Nov 06, 2017 6:15 pm    Post subject: Reply with quote

lol.....I dropped off the 400 today with Daniel, I had to hold him back on cam selection.....I have a wish for smooth cruising low RPM torque that precludes all the fun cams, lol. Want to go with something like an 067 factory cam.
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Leigh
1969 Pontiac Firebird 400
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gke60



Joined: 17 Oct 2007
Posts: 297
Location: perth, western australia


PostPosted: Tue Nov 07, 2017 9:03 pm    Post subject: Reply with quote

LeighP wrote:
lol.....I dropped off the 400 today with Daniel, I had to hold him back on cam selection.....I have a wish for smooth cruising low RPM torque that precludes all the fun cams, lol. Want to go with something like an 067 factory cam.


you must be getting old .... lol
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LeighP



Joined: 17 Oct 2007
Posts: 5362
Location: Sydney, Australia


PostPosted: Wed Nov 08, 2017 12:58 pm    Post subject: Reply with quote

gke60 wrote:
LeighP wrote:
lol.....I dropped off the 400 today with Daniel, I had to hold him back on cam selection.....I have a wish for smooth cruising low RPM torque that precludes all the fun cams, lol. Want to go with something like an 067 factory cam.


you must be getting old .... lol


Picked it in one! Laughing

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Leigh
1969 Pontiac Firebird 400
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krisr



Joined: 29 Oct 2007
Posts: 606



PostPosted: Thu Nov 09, 2017 12:35 am    Post subject: Reply with quote

If you're intending on sticking with hydraulic flat tappet I could probably get you a really good custom ground Isky cam that a mate was going to use in his 400 Bonneville but decided against - he's back from the USA so I can get the lobes and LSA off him tomorrow. The profile would have run silky smooth in a 400 but he's my age so went with something a but more "appealing" to the younger generation instead as the cam was picked off the specs off of an older generation bloke Laughing

Alternatively if you're looking to go roller, these lifters have your name all over them! Laughing

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- 08 HSV GTS, LS3, 6spd auto
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LeighP



Joined: 17 Oct 2007
Posts: 5362
Location: Sydney, Australia


PostPosted: Thu Nov 09, 2017 10:19 am    Post subject: Reply with quote

Let me know the specs on thaty cam, if you get the chance. Daniel at Peninsula has the cam specs I've left with him, he was going to talk to his grinder about it.
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Leigh
1969 Pontiac Firebird 400
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krisr



Joined: 29 Oct 2007
Posts: 606



PostPosted: Thu Nov 09, 2017 7:32 pm    Post subject: Reply with quote

Right, it's an Isky 264-Mega Hydraulic (#901264) so would be pretty sedate in a little 400 and have a heap of low end

    Adv Duration - 264/264
    Duration @ 0.050 - 214/214
    Lift - 0.450 (1.5 rockers i'm assuming)
    LSA - 108


Daniel also put together his 400 for him and broke it in for him on the test stand but he's joining the EFI dark side with me so he's got a HEI, edelbrock intake and a rebuild Carter AFB to go too off that motor. Let me know if any of it's of interest, i'll pass you his number and you guys can work it out.

Kris

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- 08 HSV GTS, LS3, 6spd auto
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LeighP



Joined: 17 Oct 2007
Posts: 5362
Location: Sydney, Australia


PostPosted: Thu Nov 09, 2017 10:27 pm    Post subject: Reply with quote

OK...I'll think about it...its probably a little smaller than I was planning on, though. The other parts I'm OK with at the moment, thanks.
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Leigh
1969 Pontiac Firebird 400
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krisr



Joined: 29 Oct 2007
Posts: 606



PostPosted: Thu Nov 09, 2017 11:12 pm    Post subject: Reply with quote

I might have a hydraulic roller coming out of mine soon to go with the lifters... it's a bit bigger, but sounds good in a 400 Laughing
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- 08 HSV GTS, LS3, 6spd auto
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LeighP



Joined: 17 Oct 2007
Posts: 5362
Location: Sydney, Australia


PostPosted: Sun Nov 12, 2017 12:50 am    Post subject: Reply with quote

lol....I think I'll pass on that one. Laughing
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Leigh
1969 Pontiac Firebird 400
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