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yes exactly

And yes concerned about hot spots as marine engines are constantly under load

The rest of the combo is Scat 4” forged cranks, H beam rods, Icon 983 forged pistons, ported EQ heads, Edelbrock Performer RPM air gap intakes, Edelbrock 750 CFM Marine carbs, Mallory Marine electronic distributors, center rise Chrysler marine exhaust manifolds, Harland Sharp 1.6 roller rockers...

Not talking about near the bore, but where the quench area of the head meets the combustion chamber

I’m getting ready to install my ported EQ heads on my 2 408 motors. Before I install them, would it be wise to take a small sanding disc or roll to the edges of the combustion chamber where the chamber meets the machined deck surface? Or am I over thinking it? The guy that ported my heads and...

Look at the oil pan gasket for a 2.4 from a SRT-4, it has as close as you can get to a crank scraper in a production type motor. this is combined with the balance shaft housing that acts like a Windage tray.

How far can I go before losing Quench? .040? .050? I'm building 2 408s with EQ heads and Icon 983 pistons, would I chance more detonation with a lower Compression ratio at .050 Quench than the higher ratio at .040?

Side note, you want to make sure you uyse the 91-92 Manifolds, the later ones look the same but have smaller ports to increase back pressure in order to reduce emissions

Drive around the lake to Opel engineering in Streamwood IL, Ted will build you a killer motor

Actually its a bored out 273 as its an LA motor IJS...

American rice that ran 11 flat at 130 MPH... It would smoke your stroker A body, and it went around corners too... At the track it was faster than my 392 Stroker GCSRT-8, but it was slower on the street. The SRT-8 would kill it to about 330ft and the SRT-4 would catch it by half track, then run...

I had the same, ordered it from Bettenhausen Dodge, the day they released it for ordering, used my Vendor discount, drove the wheels off of it, had it at Road America, the Autobahn CC, Topeka, and many weekends at Rt 66 or Rt 41 draq strips. Closest thing to a 68 Road Runner Mopar has made...

And you think a F150 is a truck...

The problem is all the electronic bells and whistles are becoming mandatory thanks to the feds. The SRT-4 was just that, but the Dart was a flop and they pulled the line before the SRT Dart ever came to fruition. Damn shame too, I bought a Dart GT for my wife to DD and it is a fun car, it...

I just bought a running poly from a 64 Plymouth with 80,000 (180,000?)for 250$ complete from pan to air filter. If the exhaust aer in good shape, they are worth about 200$ Does it have a 4bbl intake? those are worth 300$ or so.

IIRC all magnums use the 360 style pan. I may be wrong, but I'm pretty sure they do.

A friend had one 4.30s 4 speed Mach 1, ran 13.50s all day long, my 440+6 consistently beat him, used to get under his skin all the time, I hated the look of the Mach 1, but the 429 did run well.

Yeah the Poly blocks can be bored over .100 and still have good wall thickness, along with a stroker crank you can build a big inch motor, and the heads are decent to work with. THis one is going to be mild with the 3 Holley 94s, some lakes headers, a mild cam and some mild porting on the heads...

I've bought 3 5.9 Magnums for projects, 2 runners complete with harness and computer for 450$ each and a short block for 100.00 all 3 checked out fine at the machine shop, 2 are going in my boat at 408 Cu In and one in my wrangler with stock stroke. Hit up craigslist and find a core, machine...

Building two of these 408 Stroker 5.9 Magnums with Enginequest heads and Hughes Hyd Roller cams for my 27' Magnum Marine boat And collecting parts for a Poly 318 to go into my 21 Dodge Lakes speedster

I just went to the factory and picked up two Avon Progear chains for my boat motors. The gears are made in house in LaGrange IL. They use the Rolon / Renold Gold chain. I noticed while I was there that they make the timing sets for Edelbrock and Manley as well. Useless trivia fact: Avon / Pro...

My first car was a 1967 Belvidere II convertible with a Poly head 318 ( must have sold new in Canada). I found an Iron 4 BBL intake in a junk yard, installed a Thermoquad with an adapter plate and dual exhaust with glass packs. It was the best sounding exhaust I've ever had on a car. I don't...

Yes I plan on breaking them in out of the boat then tuning them on the dyno. Hoping to drop them in the boat and running the snot out of them right away. I'm sure it won't happen that way lol

The GM Vortec marine engines run 9.4 to 1 compression, so that is what I aimed for, making sure I had good .040 quench. Would I be better off going up to a .050 quench and lowering the compression to 9.2? At the fuel docks it's usually 93 and sometimes 89 Octane. I plan on keeping some good...

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It's a 27' Magnum Marine 24 degree deep V off shore hull. Old school 7000 Lbs of wave cutting fun. The exhaust is 1986 Chrysler Marine center rise iron manifolds that internally resemble passenger side 340 HO manifolds upside down with 3" risers and 4" thru hull pipes. It is a Hughes lobe.

Okay I have a question, throwing another factor into LSA and cam choice. I'm building 2 408 Cu In 360 Magnum based engines for a boat with water cooled exhaust so I also have to worry about water reversion. My engines are running ported Enginequest heads with 2.02 I and 1.62 E valves and 9.4...

I'm looking at the Harland Sharp pedestal mount rocker arms for my EQ CH318 B heads with a Hughes cam Do I need the adjustable arms, or can I use the non adjustable ones?

Updated the outdrives to Volvo SP-A drives, as long as I keep the props in the water I should be fine.

That will be a nice upgrade from the 250 HP 340 SuperBeeIII engines it had. It will be like adding a 3rd motor lol