[71 Ventura II]

I need to see what they are suppose to look like. Thanks! JD

[Kyflier]

Hey, this guy hasd a set and wants to trade

http://nashville.craigslist.org/pts/2102158520.html

[Kyflier]

I just called that guy, the l2279's he has are domed pistons. I think that guy has the wrong p/n on those flat tops

[goatasaurus rex]

little 10cc dome. looks a lot like the pistons in a '70 LT1.

[Firebob]

I sold a set of those awhile back. They were an older NOS set but they had a half dome about a 1/4'"and a trough next to it. Ended up with a +10cc volume instead of the normal -7cc of flattops. Puts the CR WAY up, if those are the ones I'm thinking of.

Robert

[boater bill]

Here's a link to the pistons on Summit Racing website
http://www.summitracing.com/parts/TR...9F60/?rtype=10

I have these to use on my build right now, the one thing not to overlook is the ring thickness, the oil is a low tension 1/8" pack.

HTH

[PONTIAC DUDE]

Used to run them in my 400 street car with 6X heads.

10-1 compression. stock rods with bolts.

Put a lot of bottles of nitrous thru them with no problems. 3 years of racing. Back in the day when I first purchased my T/A.

1975: 3800 lbs. hyd cam. 175 shot. 10.70's. Heavy but reliable back then. I do think the newer pistons that S.P. is making in India aren't as reliable to take what the older Made in USA units did.

[71 Ventura II]

That's what I was looking for! There's a set listed on Ebay of the L2279's but they aren't the right pistons for the box. The pistons he has shown have a completely flat top with zero valve reliefs. Thanks! JD

[boater bill]

I still need to buy the rings from you Ken for those pistons. Probably in a couple of months after my chemo.

[PONTIAC DUDE]

Originally Posted by boater bill

I still need to buy the rings from you Ken for those pistons. Probably in a couple of months after my chemo.

No problem. Hope all goes well. You will be tired enough after all that treatment.
Thumbs up dude. A positive Attitude is very important.

[screamingchief]

Originally Posted by boater bill

I have these to use on my build right now, the one thing not to overlook is the ring thickness, the oil is a low tension 1/8" pack.

HTH

FYI: You can get rings that have the standard tension oil ring for those L2279F 400 cid dome pistons,but just not from speed-pro,you have to get these from total seal instead,look in their "classic race" line of file fit rings and they're in there,it's tough ring to find in standard tension for that specific thickness.

I mention this because I personally would'nt run a low tension oil ring unless it was a race motor with a vacuum pump on it.

I have a set of these pistons as well,so I have plenty of info/research on them,I'm going to use them in a 400 w/mildly milled 6x-4 heads,and as Ken pointed out that ends up @ roughly 10.0:1 CR to match my other 400 cid flat top race motors.

I got pics from several angles too.

HTH

Bret P

[71 Ventura II]

Originally Posted by screamingchief

FYI: You can get rings that have the standard tension oil ring for those L2279F 400 cid dome pistons,but just not from speed-pro,you have to get these from total seal instead,look in their "classic race" line of file fit rings and they're in there,it's tough ring to find in standard tension for that specific thickness.

I mention this because I personally would'nt run a low tension oil ring unless it was a race motor with a vacuum pump on it.

I have a set of these pistons as well,so I have plenty of info/research on them,I'm going to use them in a 400 w/mildly milled 6x-4 heads,and as Ken pointed out that ends up @ roughly 10.0:1 CR to match my other 400 cid flat top race motors.

I got pics from several angles too.

HTH

Bret P

Thanks Bret! I have a deal working on a set of the L2279's with the dome milled off which should work decent with a small cc head? I'd think it would lighten the piston considerably minus the dome? JD

[screamingchief]

Those pistons are'nt really all that heavy to be honest.

That reputation mostly comes from the pins that come with those pistons.

You would lose more weight by buying lighter pins than you ever would from taking material outta the pistons themselves.

Those pistons weigh like 595g,compare that to a piston like the KB/ICON flat top 400 (558g) or dished forgings (575g) or the SRP 400 flat top forgings (520g) and you'll see that they aint really as heavy as some like to imply they are.

The pins that come with the L2279F are like 200+ grams,now those are heavy.

Lighter pins are an easy 50g+ weight savings.

Food for thought.

Bret P.