1962 300H ,413 2x4 HP Motor Info/advise needed

[FastFury]

Looking for advise
I can buy a 1962 413 HP motor removed from a 300H Chrysler with 2x4 inline carbs. See Pad stamp photo
I am thinking about installing in my 1962 Plymouth Sports Fury that is going to be built as correct driver
Can anybody provide some info on this engine and is it worth the time and trouble or should I pass and build some other 1962 Mopar BB motor??

 

[lewtot184]

should be a 385hp 413. it was available in the dodges but not plymouths. naturally the 2x4's, solid cam (284-.420 lift) with adjustable iron rockers, i believe 10:1 compression, standard port heads with heat crossover, 2.08-1.60 valves. it would be interesting to tinker with if the carbs, linkage, and air cleaners are all there.

 

[FastFury]

Thanks
Its all there ,all the special brackets, Manifolds, except the Air cleaners.
Would the solid lifters be a Mant issue
What about running with a single 4bbl carb?

 

[lewtot184]

it's a mild cam slow opening and closing ramps compared to today's profiles. no maintenance issues. any standard port 4bbl intake should bolt to it. i think the only real difference between to 340hp 413 and 385hp is the cam and carbs. i wouldn't be afraid of the 2x4's. afb's, fairly simple. the intake has a heat crossover so it should warm up drive fine. should have a dual point distributor. those almost need a distributor machine to set up correctly. the 10:1 compression wouldn't be pump gas happy.

 

[moparker]

That would look bad *** in your Fury! Leave the 2x4's

 

[Darter6]

wow.. I would love to have a find like that.

 

[khryslerkid]

Ive seen a member or two with this combo. You can search the threads. We're thinking it might have been a dealer installed option. There's not any documentation so far proving this. It's what I'm installing in my '62. If anything grab the 413 for the 2x4 intake and carbs. They are very expensive on todays market.

 

[lewtot184]

the inline 2x4 was standard in the 300h. the cross ram was optional.

 

[62 Dart Convertible]

Hi FastFury

Here is a link to a thread on the topic of the 300H motor in Dodges/Plymouths. A divisive topic..

http://www.forbbodiesonly.com/moparforum/showthread.php?38511-Blue-413-62-Polara&highlight=blue

With respect to your question of whether to get the motor or not, to me it's simple. Do you want an original 300H motor? They are quite rare and if you went looking for one specifically, you would not find one.

What makes them special is the dual quad intake, carbs, linkages and air cleaners, higher CR, and solid cam and adj. rocker gear. Those missing air cleaners are hard to get and folks ask $$ for them! (Geez, a pair of new air filter elements cost me $100.)

Is it worth the time and trouble? Only you can answer that. It is more of a challenge than building a late 60's 440, but what you will have will be much more special and "period correct". Every time you open your bonnet, you will be rewarded...

See -

 

[62MAX]

Hi FastFury

Here is a link to a thread on the topic of the 300H motor in Dodges/Plymouths. A divisive topic..

http://www.forbbodiesonly.com/moparforum/showthread.php?38511-Blue-413-62-Polara&highlight=blue

With respect to your question of whether to get the motor or not, to me it's simple. Do you want an original 300H motor? They are quite rare and if you went looking for one specifically, you would not find one.

What makes them special is the dual quad intake, carbs, linkages and air cleaners, higher CR, and solid cam and adj. rocker gear. Those missing air cleaners are hard to get and folks ask $$ for them! (Geez, a pair of new air filter elements cost me $100.)

Is it worth the time and trouble? Only you can answer that. It is more of a challenge than building a late 60's 440, but what you will have will be much more special and "period correct". Every time you open your bonnet, you will be rewarded...

See -
View attachment 160838
View attachment 160839

Frank,you didn't look hard enough for air filters !!:icon_winkle:

 

[Meep-Meep]

I will vote you go for the 413 and build it with the 2 4BBLs. The only real issue is piston availability if you want to go forged, but cast replacements are available new. Just cost a bit more then the 440. Keep the cam on the small side as these intakes don't like a lot of overlap. Nothing else to it. Oh, and you need to see 62 Dart's carb resto thread.

 

[62 Dart Convertible]

Frank,you didn't look hard enough for air filters !!:icon_winkle:

You're right Bill, I didn't think to look in your garage :icon_winkle: Got mine from Atlas - pricey, and not great quality, but the only choice other than NOS I could find.

Meep-Meep speaks truth. Thanks for the post plug mate. Here it is - http://www.forbbodiesonly.com/moparforum/showthread.php?55818-Carter-AFB-restoration

 

[Garys1969RR]

Buy it! Those motors have got to be worth a lot just as a historical piece! And the factory adj valve train is got to be valuable. I wonder how those rockers would work in a hi perf street/strip motor. Would they hold up well? I have always loved the 413s ever since I had one in a 65 Fury that ran low 12s at 5600 feet. Nearly bullet proof motor! If you could find my old 413, it had .030 O.S. Arias forged dome pistons in it. And with closed chamber 915 heads it was a screamer!

 

[dvw]

Looking for advise
I can buy a 1962 413 HP motor removed from a 300H Chrysler with 2x4 inline carbs. See Pad stamp photo
I am thinking about installing in my 1962 Plymouth Sports Fury that is going to be built as correct driver
Can anybody provide some info on this engine and is it worth the time and trouble or should I pass and build some other 1962 Mopar BB motor??

If you can buy it cheap, Sell Sell, Sell, to a restorer. Then take the cash. Build a 440. 413, small bore, expensive pistons , lousy heads. If you like the intake buy a Weiand inline. (cheap used). There not as good as a good Performer RPM, but they look cool. We have a 440 w/this intake, .557 Mopar solid, 2 625 Eddys. In a 65 Plymouth with a 4.56 and good converter it runs 11.50@115.
Doug

 

[62MAX]

If you can buy it cheap, Sell Sell, Sell, to a restorer. Then take the cash. Build a 440. 413, small bore, expensive pistons , lousy heads. If you like the intake buy a Weiand inline. (cheap used). There not as good as a good Performer RPM, but they look cool. We have a 440 w/this intake, .557 Mopar solid, 2 625 Eddys. In a 65 Plymouth with a 4.56 and good converter it runs 11.50@115.
Doug

Actually if you do your homework you will find the closed chamber 300H heads are better than you think,far from lousy !!!

 

[Garys1969RR]

Does anyone know the casting number for the 300 H heads?

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I like the closed chamber heads. They work really well if you get the port air flow up.

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Im sure you could sell the heads and rocker gear on here. I would like to see the heads.

 

[62 Dart Convertible]

Does anyone know the casting number for the 300 H heads?

- - - Updated - - -

I like the closed chamber heads. They work really well if you get the port air flow up.

- - - Updated - - -

Im sure you could sell the heads and rocker gear on here. I would like to see the heads.

The heads are 324s - std 2.08/1.6 fare for 361/383/413 in 1962..

 

[dvw]

Actually if you do your homework you will find the closed chamber 300H heads are better than you think,far from lousy !!!

It is a #324, very first R/B casting. A 53 year old head design with a low spark plug location, small 1.60 exhaust valves and not much in the way of short side or chamber design. Same head used on the 361". Like I said sell to a restorer.
Doug

 

[Meep-Meep]

Spark plug location shouldn't be any different then the later BB heads and chamber design is the same as the 915. True the intake port has no short side radius to speak of but neither does the 516, 346 and 452 and people use them with some degree of success. Me personally I'd take the 915's or the 906 in the iron variety. 1.6" EX valves can easily be opened up to 1.74" and I would recommend that since hard seats for unleaded gas will need to be installed.

 

[dvw]

Spark plug location shouldn't be any different then the later BB heads and chamber design is the same as the 915. True the intake port has no short side radius to speak of but neither does the 516, 346 and 452 and people use them with some degree of success. Me personally I'd take the 915's or the 906 in the iron variety. 1.6" EX valves can easily be opened up to 1.74" and I would recommend that since hard seats for unleaded gas will need to be installed.

All points taken. This is exactly why I wouldn't use this combo unless it was very low buck. Combined with a small bore you have an engine which would be out performed by any stock 440 with a cam swap. Pick your choice of intake, Performer RPM for power or a Weiand 2x4 for looks.
Doug