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Forum: Pontiac - Street 01-13-2021, 09:00 AM
Replies: 398
Views: 70,453
Posted By 68hotbird
dogbones comp 31-1000

They are the ford comp 31-1000 . They use a generic picture in the add. Ive bought 6 sets and none of them are tapered.
Forum: Pontiac - Street 01-12-2021, 05:41 PM
Replies: 398
Views: 70,453
Posted By 68hotbird
dog bone modification

As some of you know the sealed power 2148 lifter causes the dog bones to rise up slightly at max lift which is not supposed to happen. Over time this could cause a failure of the spyder and could...
Forum: Pontiac - Street 01-08-2021, 05:45 PM
Replies: 398
Views: 70,453
Posted By 68hotbird
base circle

Cam base circle is a can of worms also. There are 2 ways to increase lift one is decrease the base circle the other is to increase the base circle and raise the the lift accordingly. different cam...
Forum: Pontiac - Street 01-08-2021, 05:19 PM
Replies: 398
Views: 70,453
Posted By 68hotbird
pushrods

I have used various lengths on pushrods. It is not easy to just say you need a certain length pushrod. You need to check your geometry on your set up and see what it needs to get proper rocker to...
Forum: Pontiac - Street 01-06-2021, 10:00 PM
Replies: 398
Views: 70,453
Posted By 68hotbird
Road paver

The 2148 should work with the road paver but its right at the lift limit will need the dogbone modification and close check to make sure the oil hole doesn't come up to high on any lifter bores that...
Forum: Pontiac - Street 01-06-2021, 09:32 PM
Replies: 398
Views: 70,453
Posted By 68hotbird
lifter clarification

I have personally done this conversion and I am trying to keep people from making costly mistakes. The 2148 sealed power lifter fits 4.3 v6 roller cam engines, 5.7 chevy v8 roller cam engines and...
Forum: Pontiac - Street 01-06-2021, 11:37 AM
Replies: 398
Views: 70,453
Posted By 68hotbird
Oil hole

The 2148 sealed power lifter is a small block Chevy lifter that interchanges with some early ls engines. The ls7 uses a different lifter that may fit some older ls engines but won't work in small...
Forum: Pontiac - Street 01-05-2021, 11:44 AM
Replies: 398
Views: 70,453
Posted By 68hotbird
lifters

The delphi ls7 lifter has the oil hole exposed in the picture the other picture is the sealed power 2148 lifter it has the oil hole .025-,030 down in the bore.
Forum: Pontiac - Street 01-04-2021, 05:37 PM
Replies: 398
Views: 70,453
Posted By 68hotbird
oil hole

the ls7 lifter the oil hole is 3/4 of its diameter out of the top of the lifer bore.
Forum: Pontiac - Street 01-04-2021, 04:11 PM
Replies: 398
Views: 70,453
Posted By 68hotbird
2148 lifter

Here is a picture of a 2148 lifter not at max lift. I attached this picture because if you notice the top of the lifter bore is chamfered. I currently have 3 blocks with at least one hole chamfered....
Forum: Pontiac - Street 01-04-2021, 02:54 PM
Replies: 398
Views: 70,453
Posted By 68hotbird
ls7 oil hole pic

here is the ls7 lifter on a .377 lobe lift howards hydraulic roller.
Forum: Pontiac - Street 01-04-2021, 02:50 PM
Replies: 398
Views: 70,453
Posted By 68hotbird
lifters

choose your lifters wisely and check everything I have done this deal a couple times and it works fine but it will not work with the new ls7 lifters (delphi as the oil hole is way to high). The...
Forum: Pontiac - Street 08-13-2020, 04:08 PM
Replies: 398
Views: 70,453
Posted By 68hotbird
spyder set up

I got side tracked on my project with the ford spyder and sealed power lifters but I should be back on it soon. A friend of mine has 5 or 6 of them running that have been done for several years with...
Forum: Pontiac - Street 02-11-2020, 02:32 PM
Replies: 398
Views: 70,453
Posted By 68hotbird
lifters

the ht 2148 sealed power lifter works with the hr276 cam I have in my motor. I have not test fit it yet but I have an hr288 I'm going to try next. That last picture with the lifer with the oil hole...
Forum: Pontiac - Street 02-07-2020, 09:42 PM
Replies: 398
Views: 70,453
Posted By 68hotbird
lifters

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...
Forum: Pontiac - Street 02-04-2020, 12:10 AM
Replies: 398
Views: 70,453
Posted By 68hotbird
Lifters

I got my ls7 lifters today and they will not work. The oil hole is to high and comes out the top of the bore with a mild lift cam. Going to talk to comp and see if they can grind the pontiac cam on a...
Forum: Pontiac - Street 02-03-2020, 11:58 AM
Replies: 398
Views: 70,453
Posted By 68hotbird
lifters

These are sealed power lifters don't remember the number off the top of my head but I will get it. These lifters and the others I am trying to make work have run for many miles with 150# of seat...
Forum: Pontiac - Street 02-02-2020, 06:26 PM
Replies: 398
Views: 70,453
Posted By 68hotbird
Mr pbody

Jim is doing well in retirement I talk with him frequently and this is a spin off of his research. I have to give him all the credit for the idea. I’m just finessing and continuing to research and...
Forum: Pontiac - Street 02-02-2020, 11:30 AM
Replies: 398
Views: 70,453
Posted By 68hotbird
valley cover bolts

The valley cover will be mounted with studs that will hold down the spider also. I am fabricating a rectangle washer to put below the locknut to help make sure the spider doesn't twist. I will post...
Forum: Pontiac - Street 02-01-2020, 08:28 PM
Replies: 398
Views: 70,453
Posted By 68hotbird
spider

spider is small block ford with some tweaking. Dog bones are also sbf with some mods to the bottom to clear the block radius. Lifters are a gm factory roller lifter for a 60 degree v6. There are...
Forum: Pontiac - Street 02-01-2020, 05:47 PM
Replies: 398
Views: 70,453
Posted By 68hotbird
hydraulic roller conversion using factory lifters. anyone seen this conversion done?

just wondering if anyone has seen this conversion done. This concept is stolen from a longtime Pontiac friend of mine who has several of these setups running with thousands of miles street and...
Showing results 1 to 21 of 21

 
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