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Search: Posts Made By: rmbuilder
Showing results 1 to 25 of 500
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Forum: General Q & A
10-16-2015, 01:34 PM
Replies: 97
Views: 17,072
Posted By rmbuilder

KV, Fact check. The call tags were issued...

KV,

Fact check. The call tags were issued from AFR and Johnson within 24 hrs of our notification. The damaged cylinder heads was not shipped back to AFR until after the new casting and parts were...
Forum: General Q & A
10-15-2015, 02:00 PM
Replies: 161
Views: 40,850
Posted By rmbuilder

Chris, You are correct, the heads in the...

Chris,
You are correct, the heads in the collateral valvetrain components were purchased from me. As you can see on the email correspondence from Scott Stinebring the AFR heads would be shipped...
Forum: General Q & A
08-05-2015, 09:25 AM
Replies: 306
Views: 74,810
Posted By rmbuilder

Joe, Not only is that not an accurate...

Joe,
Not only is that not an accurate representation of what transpired, it is blatantly dishonest, untruthful, and misleading. The entire email chain is attached below.
Here is my email, where I...
Forum: Do It Yourself, Boating on a Budget
05-07-2015, 05:45 PM
Replies: 29
Views: 14,360
Posted By rmbuilder

Tip

Sparky,

Contrary to popular belief, the bigger problem with current flat tappet camshafts is not the lack of zinc in the oil formulations, as zinc content can be altered by the end user. The...
Forum: Do It Yourself, Boating on a Budget
05-07-2015, 06:42 AM
Replies: 29
Views: 14,360
Posted By rmbuilder

Lifter

Sparky,

The best flat tappet lifter I have personally used is the GM PN 5232720 or AC Delco PN HL66, but a set of 16 (PN 12371044). The body and foot are two distinctly diverse materials with a...
Forum: General Q & A
04-17-2015, 12:14 PM
Replies: 26
Views: 8,157
Posted By rmbuilder

600sci

539998
Forum: General Q & A
04-16-2015, 02:46 PM
Replies: 12
Views: 1,511
Posted By rmbuilder

Mike, They will not have a design for the...

Mike,

They will not have a design for the BBC. The SBC pump is a 7 spur gear pump vs. 9 spur gear for the BBC. The torque and pressure ripple are more aggressive in the 7 spur design. while they...
Forum: General Q & A
04-13-2015, 07:32 AM
Replies: 6
Views: 2,917
Posted By rmbuilder

Don Z, The Isky 3970-HYRT is the Isky...

Don Z,

The Isky 3970-HYRT is the Isky private label Morel 4603 lifter. Their sizing tends to run true to OEM.

It is .300” long, to clear the raised lifter boss, and is a direct drop in for an...
Forum: General Q & A
04-09-2015, 07:42 PM
Replies: 31
Views: 13,398
Posted By rmbuilder

The 525 EFI came direct from Mercury Marine with...

The 525 EFI came direct from Mercury Marine with Crane 16535-16, .300" long body, to accommodate the reduced base circle of the .372" lobe. The confusion stems from "factory" , GM or Mercury.The Merc...
Forum: General Q & A
04-09-2015, 04:28 PM
Replies: 31
Views: 13,398
Posted By rmbuilder

Also if your lifters have a .750" wheel, they are...

Also if your lifters have a .750" wheel, they are not the cast bodied Street replacement design, which means they are a 4603 or higher. That would be another incentive to re purpose them into this...
Forum: General Q & A
04-09-2015, 04:22 PM
Replies: 31
Views: 13,398
Posted By rmbuilder

LL The force, or spring rate, that’s required...

LL
The force, or spring rate, that’s required for your valve train is a byproduct a very simple equation.
F= M*A

At sub 5200 RPM, on a lobe with a modest acceleration derivative that element is...
Forum: General Q & A
04-09-2015, 10:30 AM
Replies: 31
Views: 6,249
Posted By rmbuilder

We are a top 15 WMD vendor for AFR. We have...

We are a top 15 WMD vendor for AFR. We have guaranteed pricing.

Just submit ANY valid estimate from an AFR product and we have you covered>

Thanks,

Bob
Forum: General Boating Discussion
03-27-2015, 02:18 PM
Replies: 8
Views: 1,279
Posted By rmbuilder

Ken, The cam is a 60 MM, 2304, vacuum...

Ken,

The cam is a 60 MM, 2304, vacuum degassed, carburized ,AQ, 8620 billet core.

Weapons grade

Bob
Forum: General Q & A
03-16-2015, 06:05 PM
Replies: 89
Views: 18,860
Posted By rmbuilder

Info Sheet

There is no durability penalty in using the piston sprayers. They offer two orifice sizes depending upon the level of thermal transfer from the crown. The upside is a significant increase in...
Forum: General Q & A
03-16-2015, 03:55 PM
Replies: 89
Views: 18,860
Posted By rmbuilder

14, Bo Laws makes a very cost effective kit...

14,

Bo Laws makes a very cost effective kit to drill your own pin/crown oilers. This kit gets essentially the same result as the Dart Pro Stock Shop block option.

Bob
Forum: General Boating Discussion
03-13-2015, 02:01 PM
Replies: 11
Views: 13,465
Posted By rmbuilder

Thanks John, I enjoyed the opportunity to...

Thanks John,

I enjoyed the opportunity to work with you on this piece and look forward to the follow up articles.You are a genuine asset to the OSO community. I would like to give a shout out to...
Forum: General Q & A
03-13-2015, 12:26 PM
Replies: 110
Views: 16,550
Posted By rmbuilder

The going rate is $1000.00 per day plus $75.00...

The going rate is $1000.00 per day plus $75.00 per hour setup and tear-down with one of the best in the business. Operator and tech support included. We will be providing the custom AFR 385 head with...
Forum: General Q & A
03-10-2015, 02:08 PM
Replies: 41
Views: 10,754
Posted By rmbuilder

Rod ratio at the OEM level is a pertinent design...

Rod ratio at the OEM level is a pertinent design element. That is the only period you have to alter the engine architecture to a desired spec. See the LS2 rod angle below. It reflects the lowest...
Forum: General Q & A
03-10-2015, 01:45 PM
Replies: 20
Views: 3,209
Posted By rmbuilder

195's

PP230

406 CID 4.125” x 3.75”_AFR 195 cc Street Program. Twin engine, heavy boat, low compression, conservative hydraulic roller profile.

522.4 TQ @4600

509.5 HP @5600

With a few setup...
Forum: General Q & A
03-09-2015, 02:02 PM
Replies: 41
Views: 10,754
Posted By rmbuilder

Tinker, Below is a table of the most...

Tinker,

Below is a table of the most commonly used stroke/rod combinations currently in use in BBC marine applications. The rod angle is calculated at max.

The 4.375”, short deck carries only...
Forum: General Q & A
03-09-2015, 09:13 AM
Replies: 41
Views: 10,754
Posted By rmbuilder

Steve, A stroke increase of .250" is a...

Steve,

A stroke increase of .250" is a function of 2 x increase in radius.(.125") BBC rod length increases are related to pin placement.

Bob
Forum: General Q & A
03-03-2015, 07:46 AM
Replies: 361
Views: 60,852
Posted By rmbuilder

Sprague, Efficiency, velocity profile, port...

Sprague,
Efficiency, velocity profile, port speed and cross section area are all equally critical in either a forced induction or NA application. The dated notion that you can crutch a bad...
Forum: General Q & A
02-28-2015, 05:13 PM
Replies: 2
Views: 693
Posted By rmbuilder

Bolt on the GM Gen VI cam retainer (PN 10168501)...

Bolt on the GM Gen VI cam retainer (PN 10168501) using two 1/4-20 x 1/2 buttonhead T27 Torx fasteners (PN 14093637).

*torx bolts should be taken to 105*In*lbs

Retainer holds the cam in the...
Forum: General Q & A
02-28-2015, 12:32 PM
Replies: 6
Views: 20,816
Posted By rmbuilder

Sea, Rectangular Port GM Part No.: Casting #...

Sea,

Rectangular Port GM Part No.: Casting # / Part#
6272990 / 6260482 or 14096188 Original LS-7/LS-7 Open Chamber Designed for the MK IV block

140970088 / 14096802 Service replacement head...
Forum: General Q & A
02-26-2015, 02:06 PM
Replies: 82
Views: 18,235
Posted By rmbuilder

That also hold true for a forced induction engine...

That also hold true for a forced induction engine and a naturally aspirated counterpart. The optimal port cross section area, volume, and velocity profile for will be the same for both, all else...
Showing results 1 to 25 of 500
 
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