318 poly

House of Darts · 11-08-2017, 10:46 PM

Anyone try this combo with 2 BBL in a 60's car? Still has original factory HP. Way more than the LA 318.

GTX JOHN · 11-09-2017, 02:41 AM

It would be a nightmare.....What is it 230HP or so?

I race a 63 Belv. 318 poly with 2 fours in AHRA Formula Stock back in the day that I traded straight across for a set of Max Wedge Heads to Burbank Speed in the early 70s. It ran in the mid 12s.

A 2 Brl. 318 would not stand a chance against our 318 Thermoquad
O/SA Wagon which is at 230 HP!

Dave Noll · 11-09-2017, 03:09 AM

230 with a thermoquad ?!?!

Dwight Southerland · 11-09-2017, 08:44 AM

If you take 45 hp off like the LA engines, it would be reasonable to consider.

Billy Nees · 11-09-2017, 08:48 AM

2V polys are at 195.

Coleydog · 11-09-2017, 12:45 PM

Finding a cam for one would be a nightmare, but they are solids and adj rockers. Read of a builup on one of these engines, a little head work, cam and good intake, made over 500 hp. Briggs and Stratton valves in them.

Paul Precht · 11-09-2017, 03:33 PM

The 62 4 barrel would be great if it were rated around 220. Other than the lifter layout for the canted valves, the shortblock is no different than an LA 318 or 340, it uses the same AFB as the 361/305 with 1.84/1.56 valves and these engines can be had for free although the mani is usually few hundred. Find a clean 62 Dodge or Plymouth 2 or 4 dr and have fun.

House of Darts · 11-09-2017, 10:19 PM

I was thinking of the 2 bbl combo in a A body. Well tuned that combo produces a strong torque curve. With a B&B motor and a stocker cam???? How easy to convince NHRA for a 318 LA rating?

Paul Precht · 11-09-2017, 11:28 PM

Quote:

Originally Posted by House of Darts

I was thinking of the 2 bbl combo in a A body. Well tuned that combo produces a strong torque curve. With a B&B motor and a stocker cam???? How easy to convince NHRA for a 318 LA rating?

They were never made as far as I know, the A's got the 273.

GTX JOHN · 11-09-2017, 11:52 PM

No A body poly 318 every produced.

11-08-2017, 10:46 PM	#1
House of Darts Member Join Date: Mar 2007 Posts: 346 Likes: 19 Liked 20 Times in 15 Posts	318 poly Anyone try this combo with 2 BBL in a 60's car? Still has original factory HP. Way more than the LA 318.

11-09-2017, 02:41 AM	#2
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,528 Likes: 2,220 Liked 1,791 Times in 571 Posts	Re: 318 poly It would be a nightmare.....What is it 230HP or so? I race a 63 Belv. 318 poly with 2 fours in AHRA Formula Stock back in the day that I traded straight across for a set of Max Wedge Heads to Burbank Speed in the early 70s. It ran in the mid 12s. A 2 Brl. 318 would not stand a chance against our 318 Thermoquad O/SA Wagon which is at 230 HP! __________________ John Irving 741 Stock 741 Super Stock

11-09-2017, 03:09 AM	#3
Dave Noll Senior Member Join Date: Nov 2007 Location: Div. 6, Eastern, WA Posts: 694 Likes: 2,255 Liked 219 Times in 105 Posts	Re: 318 poly 230 with a thermoquad ?!?! __________________ Dave Noll, E/FS ,L/SA 6526

11-09-2017, 08:44 AM	#4
Dwight Southerland VIP Member Join Date: Dec 2001 Location: Arkansas - In the middle of everything. Posts: 1,980 Likes: 52 Liked 724 Times in 177 Posts	Re: 318 poly If you take 45 hp off like the LA engines, it would be reasonable to consider. __________________

11-09-2017, 08:48 AM	#5
Billy Nees VIP Member Join Date: Oct 2002 Location: On a hilltop in Pa. Posts: 4,218 Likes: 3,091 Liked 6,772 Times in 1,519 Posts	Re: 318 poly 2V polys are at 195. __________________ Billy Nees 1188 STK, SS Make tech "TECH" again!

11-09-2017, 12:45 PM	#6
Coleydog Senior Member Join Date: Jul 2014 Posts: 561 Likes: 33 Liked 47 Times in 32 Posts	Re: 318 poly Finding a cam for one would be a nightmare, but they are solids and adj rockers. Read of a builup on one of these engines, a little head work, cam and good intake, made over 500 hp. Briggs and Stratton valves in them.

11-09-2017, 03:33 PM	#7
Paul Precht Senior Member Join Date: Dec 2001 Location: Elysburg, Pa Posts: 689 Likes: 281 Liked 223 Times in 88 Posts	Re: 318 poly The 62 4 barrel would be great if it were rated around 220. Other than the lifter layout for the canted valves, the shortblock is no different than an LA 318 or 340, it uses the same AFB as the 361/305 with 1.84/1.56 valves and these engines can be had for free although the mani is usually few hundred. Find a clean 62 Dodge or Plymouth 2 or 4 dr and have fun.

11-09-2017, 10:19 PM	#8
House of Darts Member Join Date: Mar 2007 Posts: 346 Likes: 19 Liked 20 Times in 15 Posts	Re: 318 poly I was thinking of the 2 bbl combo in a A body. Well tuned that combo produces a strong torque curve. With a B&B motor and a stocker cam???? How easy to convince NHRA for a 318 LA rating?

11-09-2017, 11:52 PM	#10
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,528 Likes: 2,220 Liked 1,791 Times in 571 Posts	Re: 318 poly No A body poly 318 every produced. __________________ John Irving 741 Stock 741 Super Stock

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