Search found 702 matches

by Speedbump
Mon Sep 17, 2018 4:17 pm
Forum: Engine Tech
Topic: Pan gasket / rear main seal leak question (big block mark IV)
Replies: 9
Views: 1793

Re: Pan gasket / rear main seal leak question (big block mark IV)

And there ya' have it. Real world proof that "if you can't fix it with a hammer, it's an electrical problem." :D
by Speedbump
Fri Aug 31, 2018 12:41 pm
Forum: Engine Tech
Topic: Gen V BBC timing cover?
Replies: 4
Views: 2178

Re: Gen V BBC timing cover?

Sorry. I ran the #10237300 and it comes up a Gen VI block, but I've had another gen VI block in the shop and it only had 6 holes which matched the timing cover it had. This thing looks like it could be a dual unit with all the holes. Just wondered if such could be the case. There are many more optio...
by Speedbump
Thu Aug 30, 2018 1:52 pm
Forum: Engine Tech
Topic: Gen V BBC timing cover?
Replies: 4
Views: 2178

Gen V BBC timing cover?

Have a block that has a 1 pc. rear seal, Siamese bore 4.600, later coolant passages, etc. It has 12 holes in the front for a timing cover PLUS dowel pins. Some holes appear to be 1/4x20 and others appear to be abused 6mm metric. Milodon shows a gen 5 only timing cover but it only has 6 holes. Intern...
by Speedbump
Wed Aug 29, 2018 11:31 am
Forum: Engine Tech
Topic: Vacuum advance for street BBC
Replies: 39
Views: 6952

Re: Vacuum advance for street BBC

On my 505 with 10-1 and a 240'ish hyd. roller, it wanted 38 but 36 was where I settled with mech. advance holding it on a curve that didn't get all in until about 3500. Limited the total mech. to 14 on the MSD with a bushing I made. So initial was 22 and it started and idled fine. I ended up limitin...
by Speedbump
Sat Jun 30, 2018 11:19 am
Forum: Engine Tech
Topic: Aluminum 409" W-series blocks - any experience?
Replies: 16
Views: 3046

Re: Aluminum 409" W-series blocks - any experience?

There are 434+ stroker kits around for the 348 blocks. He could have some big inches from one of his less desirable blocks and save the 409's for some high zoot resto builds. The last 348 I did I used SHOWCARS for some parts and info. I couldn't sell the customer on the stroker but they have lots of...
by Speedbump
Sun Jun 10, 2018 11:40 am
Forum: Engine Tech
Topic: 454 valve spring rotators/ shims
Replies: 7
Views: 3415

Re: 454 valve spring rotators/ shims

I, personally, have never seen a rotator fail. In your HD application with moderate lift and spring pressure, I see using them at worst neutral and probably a positive.
by Speedbump
Tue May 29, 2018 7:21 pm
Forum: Engine Tech
Topic: Going from 23 degree to Brodix 18x; anybody ?
Replies: 28
Views: 4521

Re: Going from 23 degree to Brodix 18x; anybody ?

NO! The question was...I AM doing this for the customer whose mind is made up. Can anyone who HAS done this offer some insight? Answers like yours "The answer was, use some real 18 degree heads." is an answer to a question that wasn't asked and wastes space on a thread where actual knowled...
by Speedbump
Sat May 26, 2018 10:55 am
Forum: Engine Tech
Topic: Hydraulic roller lifters
Replies: 14
Views: 3746

Re: Hydraulic roller lifters

I just had the same problem with a set of COMP hyd. roller lifters for a Pontiac. Date code showed them to be slightly over a year old. Adjusted really nice, but by the time I got back to #1 EVERY lifter had collapsed and stuck to the bottom, leaving the same problem as has been described. Had the h...
by Speedbump
Tue Apr 24, 2018 9:14 am
Forum: Engine Tech
Topic: Auto Mechanics books for Tweenagers
Replies: 28
Views: 3924

Re: Auto Mechanics books for Tweenagers

Kids that age and even older see the car as a "lifetime" away according to their life clock. The most successful class I ever did for freshmen level students revolved around a model called "The Visible V-8." I think it's still available. It not only teaches the operation of an en...
by Speedbump
Sun Apr 22, 2018 11:18 am
Forum: Engine Tech
Topic: Comp cams short travel lifters
Replies: 17
Views: 4121

Re: Comp cams short travel lifters

Just had a first time experience with Comp hyd. roller lifters. I'm of the "don't wash" for most of the reasons stated. Noticed during inspection the push rod cups were hard or pumped up which I found somewhat unusual but not a problem. Ran through the firing order, adjusting the lifters t...
by Speedbump
Tue Apr 10, 2018 5:20 pm
Forum: Offtopic Forum
Topic: Cub Cadet Warning!
Replies: 39
Views: 14111

Re: Cub Cadet Warning!

Hey, it's patina! How you ever going to get patina on the hot rod if you don't give it a place to grow?...and those sand rakes come in coarse, medium and fine, Dave, depending on your preference.
by Speedbump
Tue Apr 10, 2018 10:37 am
Forum: Offtopic Forum
Topic: Cub Cadet Warning!
Replies: 39
Views: 14111

Re: Cub Cadet Warning!

Maybe not quite as entertaining as the political stuff, but it's amusing to an AZ kid to listen you ya' all go on and on about mowers and grass. :)
by Speedbump
Mon Apr 02, 2018 9:39 am
Forum: Engine Tech
Topic: When did fitted pins become standard?
Replies: 20
Views: 3178

Re: When did fitted pins become standard?

"As far as fitting the pin yourself... reaming or honing are downright ghetto procedures compared to a proper roller-burnished or ball-broached bore. Slide the pin out of any high quality piston and look at the pin bore; it will be an almost shiny gray color from the burnisher." From a dis...
by Speedbump
Mon Feb 12, 2018 5:20 pm
Forum: Engine Tech
Topic: Manifold Dyno Test
Replies: 53
Views: 11208

Re: Manifold Dyno Test

"Regardless of any conclusions to be drawn, BRAVO for pulling off and sharing such an extensive test series!" Yea! What he said.^ Those of us without the dyno or the resources appreciate the info people are willing to share. I don't know why people here can't just appreciate the input. The...
by Speedbump
Tue Feb 06, 2018 3:49 pm
Forum: Engine Tech
Topic: More Tunnel Ram talk
Replies: 73
Views: 8593

Re: More Tunnel Ram talk

That air filter/base plate idea is REALLY slick! Nice to see some of THAT on this forum.