Search results for query: 318 cams

I may add, margin of error for flow testing should be taken into account. I flowed 2 ports on each head and took the average. Most stock 318 heads crap out and most performance cams are less than .480 lift anyway. For future reference and kids that find this later. It's not worth buying the...

He did 3 that I know of one with magnum heads one with ported 302 heads and one with older eq's then he ported the eq's for 425 hp. Think the cams were comp 280, xe268h, xe285h on 10 ish to 1.

No doubt! In addition…. Cam size dependent, little to no loss of low end torque worth mentioning. Address the cylinder heads for better power no matter the cam size. He never mentions header size IIRC. He would get called out instantly by you and I right quick. I have 2 sets of those. IMO, a...

Cores to build are plentiful. That is a plus. Most parts that would fit on a 340 or 360 will bolt onto the 318. As Nick's Garage showed, a stroked 318 putting out over 400HP and pound feet of torque is no slouch. Like the Chev 305 and Ford 302, the 318 emissions engines got cams with reduced...

I have done a couple magnum swaps. Probably cheaper than most. I buy a truck. Rusted rotted junk for 300 to 800 bucks. Pull the engine, flex plate, starter, and anything else worth saving. Sell any parts that you can sell of the truck quick and easy. Scrap the rest for most of your money...

A running mildly hop up magnum is the best bang for the dollar, people get too hung up on the cracked head problem. It only matters if rebuilding and generally aftermarket heads are the way to go anyways in that case.

I was thinking similar, but even still though the popular LS 706 is topping 230 cfm @ .700 getting 2 -2.4 hp per cfm with what most would consider fairly mild cams for the output. Magnums are know to respond well to cams and don't flow that much worse, seems to make like a 100 hp less with...

How about a test and tune this summer? No aftermarket cylinder heads, no custom ground cams, bowl clean up no gasket matching, 3 angle valve job allowed, back cutting the valve's allowed. Factory ignition. No headers. 318 engine

Kinda smaller than a stock 340 one. We always used them like a performer and worked from idle to what cam did. But only ran stock size 340 cams with them. Good intake on 318, 340 and very mild, and A/C

Boost? Where did he say something about boost?

The 1798 and required support hardware would be good for a stock 318 with about 7 pounds of boost and a factory high stall converter. Otherwise, it would need a pile of compresson, good heads, gearing, and a high end torque converter. If you must improve the 318 with a camshaft with minimal...

Ive never sprayed this motor i sprayed a 68 dart 270 318 340 heads hemi cam torker door stop 650 dp 3.23s Also sprayed a70 duster 340 243@50 gk cam same torker door stop same 650 dp carb same unilte 3.23s This motor came out of 68 gts i raced@80k miles ran 14.3@97 plus all stock 3.23s ended up...

Ima thinking you(A56) know this; but for newbes reading this; Without headers, the Overlap cycle is sacrificed. All cams have overlap, even the factory 318 cam. Some say that headers put an easy 35 horsepower on an early 340, and that 340 cam sported only 44* of overlap. IDK if that is true...

Wait until you start looking at 318 cams. :BangHead: :rofl: :rofl: I'll look through my bookmarks and see if I can find a thread or two. I know I saved some about manifolds.

I have a few sets of SB 360/340/318 heads that are completely machined and ready to bolt on and go... They are 360 castings years range typically from 73 - 77, they will perform better than any stock 340 X or J head... Ported with hardened exhaust seats, new 2.02" intake valves, new 1.60"...

Sounds very healthy , with all of the 318 threads here, I'm sure you will be inundated with...I wish you would have dyno tested or how much HP does it make? Good job nonetheless. J.Rob

I’ve had this thought for a while. I think it’s the ports. I bet if you analyzed one of those ports you’d find it has good speed and port energy. Plus the combustion chamber is 40 years advanced vs our old iron heads. And they respond to cam swaps well because the factory cams are tiny! On non...

I know, but meant mores as comparing the tq curves of one another, 318 would be lower overall tq numbers and probably at a slightly higher rpm, but still useful see how those cams effect the tq curve and wouldn't be to hard to imagine how they would compare to the xe262h tq curve in the 318...

Problem is there's very little consensus when it comes to 273/318 performance, most think you shouldn't touch them ever 360/408 only way to go, then there's the cr and velocity doomsayers.

good used lifters for 273, 318, 340 and 360 for use with solid flat-tappet cams. i believe they came from a 273, unsure. very lightweight. if you plan on using a mechanical cam and want to avoid lifter failure, you need these. they were produced back when lifter damage was almost unheard of...

@MOPAROFFICIAL Hi, i have read this thread but not quite sure if I understand everything correctly. I want to buy these Speedmaster heads: Mopar Chrysler SB 318 360 170cc 65cc Hydraulic Roller Assembled Cylinder Heads My cam is Comp cams 20-746-9. Are these heads p&p for Mag engine with...

100%, to me the only reasons not build a 318 is if rpms/gear/stall is too much for you for hp/performance level you want. Not just for the 318 that basically goes for any engine.

Yeah I figured as much. He lamented the fact that no one here ever wanted to talk about doing up 318's. I'd imagine those cams are well into the 300+ duration figures.

I'm not disagreeing. I live both styles of cams. I collect cams and off the shelf definitely have potential that's for sure. However I just feel more comfortable knowing that it doesn't cost a penny more to have a cam company take time and find something that is best suited for me. Hell Jim at...

No that would be his recommended lsa, for street and or race. Say you like comps xe256h cam on 110 for your engine, to DV that choice basically you'd keep the same basic overlap and cut the cam on 105 lsa with that overlap and that would give you your new duration, probably something like a 250...

The “no matter what certain to make a performance improvement in a high geared low compression 318.” Works well with any of the 318 port intakes. Mile-A-Mor Cam [3901M] - $246.00 : ISKY Racing Cams, Do It Right

Thats what I am thinking

For anyone else who may be seeking 318 exhaust valves to replace the rotator keeper valves in 302 heads, here's some info that should help: The following three part numbers are all the same valve. They are easily found with an online search. Qualcast 10-1329 SBI 01329 Melling V1329 Their...

I was under the impression the 5.2 and 5.9 Magnum roller cams were a bit hotter than the LA roller cam, which did, in fact look pretty near identical to the FT pre- LA roller cam. I've asked in a few places if the LA roller version at least had faster ramps to take advantage of the rollers, but...

I think you’d like this cam if you have 2.94 or 3.23 gears. From what I’ve seen lately, Isky still has a high success rate for cam and lifter break in if you get their lifters, although I hear Rhoades non leak down lifters are good, too. It’d work really well with a Holley Street Dominator...