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Search found 2938 matches

by mag2555
Mon Mar 30, 2020 7:25 am
Forum: Engine Tech
Topic: Bigger intake smaller exhaust valves
Replies: 38
Views: 1736

Re: Bigger intake smaller exhaust valves

Then go to a NAscar oval track on race day and record some live audio of those 9000 rpm motors and blast it back thru your cars stereo whenever your motors rpm gets above 6800.

Your wallet will love ya for it, lol!
by mag2555
Mon Mar 30, 2020 6:56 am
Forum: Engine Tech
Topic: Bigger intake smaller exhaust valves
Replies: 38
Views: 1736

Re: Bigger intake smaller exhaust valves

If you want to make big power numbers at high rpm from a small cid motor and not be taring it down every other Month to inspect it, if not freshen it up then besides air flow numbers you need to think about fictional hp reduction and light valvetrain parts from the rocker to the retainer, valve spri...
by mag2555
Fri Mar 27, 2020 12:32 pm
Forum: Engine Tech
Topic: Bigger intake smaller exhaust valves
Replies: 38
Views: 1736

Re: Bigger intake smaller exhaust valves

If your taking about any of the common factory production iron heads then there is no need for anything bigger then a 2.05" valve since you can't even fully port any of those heads to make full use of that valve size without blowing tru a port wall!
by mag2555
Wed Mar 25, 2020 6:37 am
Forum: Engine Tech
Topic: Ford DS II ignition upgrades?
Replies: 15
Views: 596

Re: Ford DS II ignition upgrades?

Sorry, but I am well into my 60s and I recall all too well stuffing a section of windshield washer tubing behind the outer point arm to get more rpm out of the motor without breaking up ! Stuff in 14 to 1 compression in to any motor running on a stock coil fed point system tacking between 5500 and 6...
by mag2555
Mon Mar 23, 2020 12:25 pm
Forum: Engine Tech
Topic: Ford DS II ignition upgrades?
Replies: 15
Views: 596

Re: Ford DS II ignition upgrades?

If you need to make rising HP numbers above 5500 rpm then you have no choice but to ditch that factory system, especially if your running compression ratio's above 11 to 1.
by mag2555
Mon Mar 23, 2020 6:49 am
Forum: Engine Tech
Topic: REV Severe Duty
Replies: 4
Views: 418

Re: REV Severe Duty

They offer a few different 2.055" valves in that series, so which ones did you get?
by mag2555
Sat Mar 21, 2020 9:47 am
Forum: Engine Tech
Topic: Head choice for 347 build, AFR 205 or Ported Victor jr heads?
Replies: 10
Views: 488

Re: Head choice for 347 build, AFR 205 or Ported Victor jr heads?

For romps up to 8200 I would take it a step further then the above and replace the Intake valves with Titainum.
by mag2555
Sun Mar 15, 2020 7:07 am
Forum: Engine Tech
Topic: Windage tray and flat cam lobes?
Replies: 7
Views: 886

Re: Windage tray and flat cam lobes?

No, keep it in the motor and use Lucus hot rod brake in additive.
Also if you can only add oil to the motor just before firing it up, but first heat up the oil in your Microwave until it noticeable very warm when you grab the bottle.

I bring my Microwave down into my garage to do this.
by mag2555
Fri Mar 13, 2020 12:15 pm
Forum: Engine Tech
Topic: Repair epoxy
Replies: 11
Views: 1226

Re: Repair epoxy

Don't you need to call the fire dept to weld Magnesium, lol!
by mag2555
Fri Mar 13, 2020 6:14 am
Forum: Engine Tech
Topic: My Headache 350 SBC
Replies: 20
Views: 1647

Re: My Headache 350 SBC

seems like you had luck on your side for the other motor builds that worked out because the root of your oil / smoke issue was the valves knocking the Pistons around and unseating the rings in all likelihood! Your poor Intake sealing that made for sucking air and oil did not help any either. If you ...
by mag2555
Thu Mar 12, 2020 2:23 pm
Forum: Engine Tech
Topic: 11/32 beehive retainer
Replies: 12
Views: 893

Re: 11/32 beehive retainer

To add to the above life comment, any nicks in the tip and keeper area of the valve will be a death sentence for that valve at some point.
by mag2555
Wed Mar 11, 2020 8:39 am
Forum: Engine Tech
Topic: Over Machined intake Manifold Help
Replies: 12
Views: 999

Re: Over Machined intake Manifold Help

The easiest thing to do if you have the porting tools, and the Intake Manifold flange is not more then 1/16" bigger then the head flange is to just open up the head flange to match the top of the Manifold.

The rework does not have to be polished out as long as it's even ruffness.
by mag2555
Wed Mar 11, 2020 6:10 am
Forum: Engine Tech
Topic: 11/32 beehive retainer
Replies: 12
Views: 893

Re: 11/32 beehive retainer

I would give comp a call on that and I would also seriously concider getting those stock type valves out of those heads.
by mag2555
Tue Mar 10, 2020 12:12 pm
Forum: Engine Tech
Topic: Trying to salvage a 400 sb 'update'
Replies: 3
Views: 713

Re: Trying to salvage a 400 sb 'update'

Never question the need for getting the Rods resized after new bolts are installed! A welded on cast Crank other then tack welding for balancing weight retension is a iffy proposition! Having a combined total mill of even .025" off the deck and heads should not make for Intake Manifold fittment issu...
by mag2555
Sun Mar 08, 2020 7:38 am
Forum: Engine Tech
Topic: Just thinking out loud is all??
Replies: 9
Views: 874

Re: Just thinking out loud is all??

Jez, why not just apply for a permit from the NRC to allow you to detonate a Nono Nuke in each cylinder and you will achieve the same blown up motor result in far less time!