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Here are a couple of more pictures. I’ll measure the valves just in case they’re not the standard size. I didn’t build the engine and the specs that were given to me from the previous owner were only somewhat accurate.

Before I list these heads for sale, I wanted to make sure I have the right application, years, engines. These heads came off my 1968 318. Casting number is 2843675. Are these correct for 1968-1969 273 engines and 1968-1974 318’s? If someone was an interested buyer, what other details would you...

I don’t have all the specs memorized yet but I just got my 416” stroker back from the shop last week. This is going in my 68 Dart, A518/46RH, 3:55 gears, street car that my see a couple of trips to the track later this year or next. Built to run on pump gas (91 octane). I bought the bare Trick...

Here are the specs on my 318. I did not build it. - 318 w/ RPM Performer manifold, Holley 750 double pumper - Lunati cam & lifters (p/n 71977-16) adv. duration 290/290 @.050 240/240 lift - Gross valve lift .520/.520 LSA/ICL 106/102 - TRW .040 Forged Pistons (compression ratio unknown) - 273/318...

Back in January of this year, the first pull on my 318 (baseline, no tune) was 254.7 hp. On my 3rd pull after re-jetting the 750 Holley DP, we got 273.3 hp. and 411 lb. tq. at the rear wheels. The header gasket was blown out at the number 2 cylinder, plugs were fouled, and had a worn cap and...

Trick Flows are back in stock at Summit. I bought a pair on Tuesday 5/4 and arrived 5/5. Get them now before they run out again!

I had to ask the shop again, so clarifying a mistake, I thought it was a pushrod, just by seeing the top of it. It's a throttle return spring that fell inside the head, after taking the intake manifold off.

Well I got about one month's worth of fun driving, but after bringing it home from the dyno, it felt a little "off", ran just bit rough. After replacing cap & rotor, plugs, wires, header gaskets, intake gasket (oil leak), it started puffing smoke out the breather and exhaust. It wasn't the PCV...

Thanks! Yes that’s a Ford 9. It was in there when I bought and it works fine with the 3.54’s.

I just installed these blue Moroso gaskets this afternoon and the driver side valve cover was leaking oil worse than the cork gaskets I had on there. I need to take them off again and see what’s going on. I have Mopar Performance valve covers and they are nice and flat

Nat- I’m considering running the exhaust out the back and or just swapping the mufflers with some Dynaflows. Maybe even switching to a 2.5” exhaust system instead.

I forgot to add that I have the 10" Widowmaker mufflers. This is from their website: With virtually no restrictive qualities, the Widowmaker 10" produces Black Widow’s signature aggressive and clean tone with a small 10” x 5” footprint. Ideal for tight spaces, the Widowmaker has a straight...

I responded to cudajames in my post about my dyno run from a couple of weeks ago: A loud car is cool for about the few minutes it's idling and acceleration, but after driving it 20-30 minutes on the freeway, not so much. Black Widow mufflers advertising says it increases horsepower with less...

cudajames- a loud car is cool for about the few minutes it's idling and acceleration, but after driving it 20-30 minutes on the freeway, not so much. Black Widow mufflers advertising says it increases horsepower with less drone. Let me tell you that there is definitely some drone. Not to mention...

Magnum Valiant- 91 octane

Moparofficial- stock 318 heads

On the labor notes: " set idle mixture screws, adjust idle, check and set timing, change out secondary jets to 83." Also, they welded in a bung, in the exhaust pipe, for the O2 sensor. By the way, the shop is Deleon Dyno Performance in Santa Clara, CA.

Here are the results from the runs today.

Not sure what section I wanted to post this thread but I figured this would be a good start. I picked up this 68 Dart at the beginning of January and I was curious as to what kind of power it was putting out. I was only given a limited amount of information about the engine build but it sounded...

Cudafever: the guy was honest about engine condition and who had built it previous to him owning it. He had it in his Duster and said it was a dog. He pulled it and ran with a 360 instead. Unlike some sellers who wouldn't take the time to let someone open up the engine, he insisted and we took...

Thank you for your quick replies and knowledge! I was kind of expecting that was the issue.

I picked up a 1971 340 a couple of weeks ago and I was wondering about the markings/grooves on top of the pistons. I'm not a expert on building engines or pistons, but I was curious as to whether the previous owner had cut into to them or possibly installed them incorrectly. I included a picture...