[ponjohn]

ANY way at all to grind the slot as Paul Carter has done with an assembled shortblock?

[JC455]

I was thinking about roller lifters last night, and had a thought... Harley V-Twins have had hydraulic roller lifters in them forever.
Anyone have a spare H-D lifter to measure?

[242177P]

Originally Posted by JC455

I was thinking about roller lifters last night, and had a thought... Harley V-Twins have had hydraulic roller lifters in them forever.
Anyone have a spare H-D lifter to measure?

No need, Google shows they use the too tall Chevy lifter.
Imagine HD saved $$$$ using a ultra common lifter.

["QUICK-SILVER"]

Originally Posted by 68hotbird

This concept is stolen from a longtime Pontiac friend of mine who has several of these setups running with thousands of miles street and track.

What parts did the friend use?

Clay

[JC455]

Bummer

[Scarebird]

Outside Diameter 0.9210
Type Hydraulic

[JC455]

So, for a street car- (4/7 swap)cam- would this work nicely with the HT-2148 lifters? Still too much?

Camshaft Type: Hydraulic Roller
Basic RPM Range: 1800 to 5200
Valve Lift Intake: .525
Valve Lift Exhaust: .530
Duration Intake: 280
Duration Exhaust: 288
Duration at 050 Intake: 227
Duration at 050 Exhaust: 235
Lobe Separation: 109
Intake Centerline: 103
Firing Order: 1-8-7-3-6-5-4-2

[Scarebird]

Originally Posted by JC455

So, for a street car, this (4/7 swap)cam should work nicely with the HT-2148 lifters?

no, they will not - did you not see several posts noting they will not work?

note this pic - see the oil hole and lifter main body sticking out? Compare that to the pic of the 60° V6 lifter.

[JC455]

Or this one:
Basic RPM Range: 2500-6500
Valve Lift Intake: .560
Valve Lift Exhaust: .565
Duration Intake: 290
Duration Exhaust: 296
Duration at 050 Intake: 237
Duration at 050 Exhaust: 243
Lobe Separation: 112
Intake Centerline: 108
Firing Order: 1-8-7-3-6-5-4-2

[RA462]

Originally Posted by JC455

Or this one:
Basic RPM Range: 2500-6500
Valve Lift Intake: .560
Valve Lift Exhaust: .565
Duration Intake: 290
Duration Exhaust: 296
Duration at 050 Intake: 237
Duration at 050 Exhaust: 243
Lobe Separation: 112
Intake Centerline: 108
Firing Order: 1-8-7-3-6-5-4-2

Thanks for the heads up on this camshaft JC455. I just ordered one for the 433 in my GTO. I didn't know Howard's made them with a 112 lobe separation angle. I hope you guys figure out a lifter that will work. This is a great idea.

[antique69lemans]

I think this idea is really close to working. I would prefer the gm dogbones if they would work. They have closed ends so it would not be possible to slide around as much. Also look at the later gm 3.4 retainer bar. Instead of spider it is much more rigid. The concept of retaining the dogbone with a rev kit style got me thinking.. If you had a rocker stud girdle it could span all the lifters retain the dogbones, have thru holes for pushtubes, and bolt to a crossbar bridging the valley.

[242177P]

Originally Posted by antique69lemans

I would prefer the gm dogbones if they would work. They have closed ends so ...

Jesel has an open dogbone for LS stuff, so I wouldn't sweat "open" too much.

[antique69lemans]

Originally Posted by 242177P

Jesel has an open dogbone for LS stuff, so I wouldn't sweat "open" too much.

Thanks for that pic. That is the concept I had in mind. Wasn't aware of that.

[JC455]

OK, there lies my confusion-
68hotbird said
"The ht2148 sealed power lifter works. With the ford style dog bone and a .335 lobe lift the barrel does not come up far enough to hit the dog bone. This would become an issue if you added another .040-.050 lobe lift or more. Just more info."

I was using his number, assuming that was the V6 part number.

[Scarebird]

No, those are the bog-standard GM V8 lifter from 1987 to mid 2000's. There is a 1997-2000 454/502 that is similar to the V8 lifter but a bit shorter it seems.

I am tempted to order one and test fit. The main reason is Rhoads makes a bleed down version of it and I can run a nastier cam.

[tempest1964]

Here is a link to the suggestion that t money made:https://www.rockauto.com/en/moreinfo...942752&jsn=258

[Scarebird]

1997-2000 C3500 w/454 BBC has roller lifters, no tie bar.

https://www.rockauto.com/en/moreinfo...353114&jsn=509

[adynes]

Originally Posted by Scarebird

1997-2000 C3500 w/454 BBC has roller lifters, no tie bar.

https://www.rockauto.com/en/moreinfo...353114&jsn=509

One thing to note about the BBC lifters, the flats run the opposite direction compared to the sbc lifters.

[Scarebird]

Originally Posted by adynes

One thing to note about the BBC lifters, the flats run the opposite direction compared to the sbc lifters.

WTF?

ah, if the lifters are splayed for the valves then rotating the guide 90° makes perfect sense...

[HWYSTR455]

'If', that's a big 'if', and most likely a 'no'. Technically its the lifter bores.

This thread is still going? Take the dive and try it, let us know how it turns out.


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