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Well I’m just dumbfounded again in Moparland. Such a simple thing, such a cost saving production item between kissing cousins, Plymouth & Dodge. Thanks for the reply, that information will be etched into my mind now!!

As the title states and what I think I found out, there is a difference. Recently used front brackets from a ‘68 Coronet 500 4-door and mount them to a ‘68 GTX bumper but they would not fit. So I guess I’m just affirming that Dodge and Plymouth brackets are not the same. Bolt holes are in...

What a difference. Did that process you use eliminate the gummy feel?

I’m using the stock log manifolds with duel exhaust and near original mufflers. The valve height difference, is puzzling and will contact the shop. I saw that the Hughes cams had a much higher lift compared to the Melling. This build is to see what the factory supplied to their customers for a...

I did not check the seat or open pressure. The machine shop did not mention those numbers but I could call and ask them. I did find something new about the heads after getting them back last week. One of Uncle Tony’s Mopar videos showed him taking a straight edge across the tops of the 8...

This is my post from a few days ago on the compression height of the old 413 pistons, @Dodge Bros “The stock compression is 10 to 1. Here are some specs on the pistons. The original compression height of the factory piston is 2.085. The compression height of the replacement pistons are...

I had just found the answer on the Summit catalog, @Dodge Bros Thanks! Melling SPD-11 - Melling Stock Replacement Camshafts what is the lobe separation of the Melling SPD-11 STOCK CAMSHAFT? 1answer Answer this Question aredd · a year ago The Melling SPD-11 replacement camshaft has a...

Here’s a simple basic question on this Melling cam and the Specs Sheet. What is the LSA? It is not listed with all this information. The Center Line is but I’m guessing that is not the LSA. Would it be attainable through math of the various openings and closings of the intake and exhaust valve...

Yes the cam needs to be a driver. I’ve been keeping up on the dialogue with much interest. Some terms are starting to get clearer and understandable. There is a lot that goes into selecting the “perfect” cam. The 4 camshafts originally listed were: 1. The Stock ‘65 300L stick that was pulled...

The 4-speed does help with idle control unlike the automatic that can lug the low speed response.

I did find the 128 rule and here are the numbers I come up with, Intake Valve size 2.08 with the center line, using this formula, is 105.4 *(LSA) (*edited because center line is the wrong term) Exhaust Valve size 1.60 the C/L is 98.2 *(LSA) The Melling cam is 110 and 116. I read that...

Wow I am getting a lesson on camshafts and what the numbers mean. That’s all good because I like to understand this science. With the advertised duration being 284 & 293 I was concerned that was too aggressive. The more accurate measurement is from 0.50 so those are 206 & 209. So this Melling...

The stock compression is 10 to 1. Here are some specs on the pistons. The original compression height of the factory piston is 2.085. The compression height of the replacement pistons are advertised as 2.015 but I didn’t measure that before the 413 was put together. I did measure 2 of the...

That makes perfect sense and I will.

I have heard that a longer exhaust duration would be a benefit for the 1.60 valves. Vacuum for the power assisted brakes is a concern too because I’m staying with the drums all around. I am upgrading to the dual master cylinder though. I appreciate your comments and I know there may be a boat...

The heads are redone already with the stock springs installed, a valve job done and hardened seats installed for the 1.60 valves. This build was based on keeping it as close to stock as possible. I was concerned about the Melling cam because of the advertised duration of 284 and 293 at .006. I...

Details: Vehicle 1965 Chrysler 300L Engine: Original 413, .030 over bore and hoping for 10-1 compression but it probably will be lower. Heads: Closed chamber 516s with the small 1.60 exhaust valve. Intake & carb: Stock 4-barrel Transmission: 4-Speed manual Rear Differential ratio: 3:23 Sure Grip...

1400 Horse Power Super looking convertible!

Don’t look familiar to me either.

How this idea?