fwd roller and non roller cam parts in gn motor w/pictures - Page 4

turbofabricator · #**106** (**permalink**) May 7th, 2008, 11:18 PM

Quote:

Originally Posted by V SICKS

Beehive springs are not NEW tech.. Olds v-8 used them starting in 1949. Mike

Not completely accurate. The Olds' DID use an invereted bee-hive looking spring, but they didn't use the ovate wire that Comp uses. (the wire is oval, not round) That is one of the main benifits of the Comp "beehive" springs. (it helps eliminate harmonics, and the need for a dampener) Plus they install them with the small end up (the Olds' I have seen, installed them with the small end down) to help reduce retainer weight. I know..........slicin' hair, here.

87buickracer · #**107** (**permalink**) May 7th, 2008, 11:51 PM

I'm running a comp roller cam with bee-hive springs..

Quote:

Originally Posted by 87 turbo buggy

did I understand that YOU installed USED and cleaned lifters on a different cam. a Comp. being no statement of refacing the face of the lifter, and a statement of putting rollers on a standard cam. I have a few muffler bearings i need cut and spun in a lathe? take pay-pal
matt

87buickracer · #**108** (**permalink**) May 8th, 2008, 12:11 AM

My heads are finally done at machine shop with beehive springs.ported and polished to the max.I had originally set the heads up for flat tappet cam,but went to beehives after going with comp billet roller cam.So if anyone need a new set flat tappet springs with retainer and locks w/dampner give me a holla.
the flat tappet springs were set up for 95lbs.Due to the fact that I am running a 72 turbo I had the machineshop set my beehive springs up for about 140lbs on the seat.Once I pick heads up I will be running rjc bullet proof head gaskets and will finally get the push rod length and pictures posted.I'm moving slow due to the fact that I am having 400 tranny built,drive shaft cut/balanced with yoke and getting roll cage for car and some body work done.I want to have everything done before putting engine in the car.I try not to count the money I spend on this car anymore,I just spend it if you know what I mean(lol)..Hopefully in the end I will have some nice time slips to post and start a new project.

Jeasen · #**109** (**permalink**) May 31st, 2008, 10:16 AM

Did anyone ever complete one of these conversions? I was just wondering how it worked out? I have been gathering parts to complete this project on my car but am still missing the spider plate to hold down the dog bones and the push rods.

Should I make a trip to the junk yard to look for the spider or give the project up?

Jeasen

mikestertwo · #**110** (**permalink**) May 31st, 2008, 12:53 PM

Quote:

Originally Posted by Jeasen

Did anyone ever complete one of these conversions? I was just wondering how it worked out? I have been gathering parts to complete this project on my car but am still missing the spider plate to hold down the dog bones and the push rods.

Should I make a trip to the junk yard to look for the spider or give the project up?

Jeasen

I'm in the middle of the conversion. I have all the parts except for the pushrods. I just haven't had time to get it all together. Too many other distractions at the moment. Probably won't be finished until sometime in July.

clusolynn · #**111** (**permalink**) June 5th, 2008, 01:42 AM

I've got my engine torn down again. Hope to have it back together in a couple of weeks. It would be nice to put a roller set up in it! Thanks for the info..

"More Boost" · #**112** (**permalink**) June 7th, 2008, 06:13 PM

ok, i was all fired up about this type of roller conversion on my motor, but my 84 4.1L has a different lifter valley. now im not so sure. has anyone done one of these before?

"More Boost" · #**113** (**permalink**) June 21st, 2008, 02:46 PM

Quote:

Originally Posted by Jeasen

Did anyone ever complete one of these conversions? I was just wondering how it worked out? I have been gathering parts to complete this project on my car but am still missing the spider plate to hold down the dog bones and the push rods.

Should I make a trip to the junk yard to look for the spider or give the project up?

Jeasen

i called buick and the part no's for the spider and the dogbones for this conversion are both unavailable now. so i gues its either junkyard or or find an engine core for parts.....

TurboBob · #**114** (**permalink**) June 21st, 2008, 07:24 PM

Someone should send a couple dogbones to DC Tech, he can cut some for us.

The hold-down is another matter, but a small-block chevy one has been modified to work........

Bob

87buickracer · #**115** (**permalink**) June 24th, 2008, 04:19 PM

I'm currently building th400 with 36 sprag/drum,alto clutches/kolene steels and intermediate power pack with reverse manual valvebody.Heads will be going on soon and will have pushrod length..only thing left to do on tranny is order valvebody.my job has been keeping my busy and slowed the process of finishing things,but I'm catching up on my days off.

old_coot · #**116** (**permalink**) July 3rd, 2008, 08:04 AM

Yeah I've been a little side tracked by some family matters that should be back to manageable soon...................Dan

1chance · #**117** (**permalink**) July 5th, 2008, 12:03 AM

This is a great thread, i cant wait to see how it works. I also have a Hydroboost set up i got from the salvage yard, but i figure no one wants to hear it. Plus i havent figured how to posts pic on the web yet!!

ijames · #**118** (**permalink**) July 16th, 2008, 07:38 PM

Well, I too have been slowly working on this. Got a spider and lifters from the junkyard. The lifters weight 107 grams each, by the way. Didn't like the way the original mounting holes lined up so well with the oil gallery, especially after one person broke through, so I made new holes closer to the centerline. I made two spacers, 3/4" OD, 5/16" ID, and 1" long, and drilled new holes in the spider for them. Then lined it all up and used a 5/16" transfer punch to mark the block, then drilled and tapped the holes. I'm not great at drilling square to a surface so I used the spacer block as a drill guide and then again as a tap guide and it all came out nice and square. Here are some pictures that I hope are viewable - I'm no expert at resizing, etc, to get them to post :-). You can see one spacer being used as a tap guide tapping the front hole, the front and rear holes from below with the spider bolted down using 1-1/2" long bolts, and last, the spider bolted down in place.

ijames · #**119** (**permalink**) July 16th, 2008, 07:43 PM

And one more pic looking through the cam bearings to show that even though the front bolt sticks through about 1/8" further than the rear bolt it still is outside the diameter of the cam bearings by about 1/8" which means it will clear the cam lobes with plenty of room. Even so I'll probably take an 1/8" off just for fun. If I ever make more progress I'll post that, too. Oh, this pic is with the block almost upside down in case anyone was wondering why the bolt was sticking up from the bottom instead of down from the top :-).

TurboBob · #**120** (**permalink**) July 16th, 2008, 07:45 PM

excellent

Blazer406 · #**121** (**permalink**) July 16th, 2008, 11:33 PM

Great Carl....

I am glad others are working on this..... cause my little engine project has turned into 24 months and counting...... my engine is built now....and sitting on the stand... however....my tranny is on the stand about 10% complete with rebuild......once it is done...I can reinstall it and get to dropping the motor in.......bad thing is.... if I got off my can.... I could probably be riding in a couple weeks.... only working on a weeknights and some on the weekends....

You guys forge ahead.....mine will be done eventually...

Bob .... you had any luck yet finding JY parts?

hrhoward · #**122** (**permalink**) July 17th, 2008, 08:07 AM

Fantastic info!!! Keep it coming!!

FJM568 · #**123** (**permalink**) July 17th, 2008, 01:56 PM

I haven't done it yet, but I was going to do the same thing that Carl has done. I've got a 212/212 cam coming from Nick Micale, so as soon as that arrives, I will start the assembly on mine.

And Jeasen, I picked up my dogbones and spider from the U-Wrench-It or whatever it's called now over in MO, along with the roller lifters. Think I only paid $20-25 for everything. I'm leaning more towards buying new lifters from GM, though.

Kind of a pain. Had to pull the top-ends apart on 2 motors to get everything. Actually, 3, if you count the 3100 I took apart before I figured out it had the flat tappet lifters instead of the rollers(wrong year)...