dimlight65 Posted December 3, 2017 Report Share Posted December 3, 2017 So I may be starting a Rat Rod project in the near future. One of the things on which I need to decide is what engine. I'm going to build zoomie headers for it and need a flange as a staring point. Here's how y'all can help (or hamper as you might prefer to see it). Does anyone have a crappy header for an A-series four, or L-series SIX cylinder that they would sell... cheap. Or, to make shipping cheaper, an header they were willing to chop the flange from... and sell cheap. Just to head off the questions in advance: I have the intake manifolds I'd use on one or the other of those engine families so those are the engines I want. 1 Quote Link to comment
G-Duax Posted December 3, 2017 Report Share Posted December 3, 2017 One of the guys up here makes L4 flanges, I think his name is Mike, but it's not datzenmike, but he would know who I'm talking about. 2 Quote Link to comment
flatcat19 Posted December 3, 2017 Report Share Posted December 3, 2017 Klotz...but he makes the down pipe flange, not the manifold flange. I have neither to offer. 1 Quote Link to comment
datzenmike Posted December 4, 2017 Report Share Posted December 4, 2017 Mike let me have one years ago, like 6? Used it last spring to convert 240sx down pipes to fit an L16 exhaust manifold. Thanks mike!! This to this . 1 Quote Link to comment
flatcat19 Posted December 4, 2017 Report Share Posted December 4, 2017 Ooo... Good idea, Mike. 1 Quote Link to comment
datzenmike Posted December 4, 2017 Report Share Posted December 4, 2017 I'm really pleased with how it came out. I had to open up the 1.5" holes slightly in the Mklotz flange and slit the pipes and clamp this closed to 1.5" and weld the seam to get the 240sx tubes into the manifold for a leak-less fit. Then used a gear clamp to squeeze the two pipes together together to tack in place. One and 4 and 2 and 3 are separate for 32-36" from the valves. Almost like a long tube header. On and off a half dozen times to test fit and then X fingers and get out the wire feed wrench. Had to make my own flange gasket. The local wrecking yard had a truck full of thrown away muffler shop parts. This was a never used 240sx down pipe or possibly from a D21 truck but from a KA engine. Likely they are pretty much the same anyway and clear the steering box and the transmission but I don't know how well it will clear any torsion bars. Here's what it looked like when I got it... Had to heat the exhaust to get the old studs out and replace with stainless...The KA and the L series use similar dimension transmissions so the KA exhaust should fit just about any L powered Datsun with an L16 cast iron exhaust manifold. Never cared for the two into one down pipes... very poor restrictive joint (like terrible) and welding except maybe the stock ones.. 1 Quote Link to comment
dimlight65 Posted December 4, 2017 Author Report Share Posted December 4, 2017 I'm sure glad I started a thread for you oiks to take over and yammer on about your gee-gaws! https://thumbs.gfycat.com/TastySickAsianporcupine-max-1mb.gif 2 1 Quote Link to comment
flatcat19 Posted December 5, 2017 Report Share Posted December 5, 2017 I'm sure glad I started a thread for you oiks to take over and yammer on about your gee-gaws! https://thumbs.gfycat.com/TastySickAsianporcupine-max-1mb.gif You might have actually been funny had your gif worked out for ya. 1 Quote Link to comment
datzenmike Posted December 5, 2017 Report Share Posted December 5, 2017 Here's how y'all can help (or hamper as you might prefer to see it). I took this seriously.... 1 1 Quote Link to comment
G-Duax Posted December 13, 2017 Report Share Posted December 13, 2017 Just got this e-mail..... L4 flanges are available !! Hi Gordon. Judy Stahl forwarded me your email. StahlHeaders is now closed and Advanced Composite Products (ACP) is now producing Stahl Headers. The Datsun 510 flange is available in a 1-1/2" 1-5/8" port only. Please note the center ports are larger to accommodate a double wall tube (how we used to build them in the past). The price is $67.70 ea. Thanks! Greg StumpManager/Lead Designer ACP Headers 717-232-2800 Phone 717-232-5417 Fax Quote Link to comment
datzenmike Posted December 13, 2017 Report Share Posted December 13, 2017 Intake ports are 38mm (1 1/2") so 1 5/8" would be needed if adding a pipe on the inside. Quote Link to comment
G-Duax Posted December 13, 2017 Report Share Posted December 13, 2017 These are just exhaust flanges. Like this L6 flange: https://www.ebay.ie/itm/DATSUN-240Z-260Z-280Z-280ZX-EXHAUST-MANIFOLD-FLANGE-/292357848377?hash=item4411e2bd39 Quote Link to comment
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