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The Flow Kooler water pumps and high flow thermostats are supposed to (likely work) increase coolant flow. Has anyone ran a Flow Kooler setup in a big block & what were your results? Thanks!

I'm building a 99% street nitrous motor. I'd like to build the engine to handle a 250-300hp nitrous shot. I'm pretty settled on some Icon 2618 forged pistons, but what about the rings? The Icons use 1/16", 1/16", 3/16" rings. I've previously run 125-150hp nitrous shot, but this is a new...

A shop worked on my car and the large crank bolt at the harmonic balancer fell out! The bolt is stripped. The shop said they ran a tap in the hole (but re-used the stripped bolt?) Anyway, the shop is talking about a VERY expensive “key-cert” (sp?) insert. I want to try a new bolt first. I’m...

I'm running a set of 452 iron heads on my motor. Years ago, I removed the end exhaust studs on both heads (goes into coolant passages) for header clearance (big tube Hookers, which I no longer have) and used header bolts with RTV on the end stud (now bolt) holes on both heads....worked for...

I've got a couple questions about strengthening a 440 bottom end, stock stroke, to handle a 250+hp shot of nitrous. This is a long-distance cruiser engine (the plan), but I don't want take the nitrous off the car. I've run stock main caps with a 150hp shot of nitrous (current motor), but I put...

Does anyone know where I can get a valley pan cover that will clear a stock dual plane 440 six pack intake manifold? Am I stuck with a "trim my own" made out of a factory type intake bath tub gasket? I have iron heads on the engine now & will hopefully be switching to the original open-chamber...

70 Roadrunner 440 with a Milodon "hemi" pan & matching Milodon 1/2" oil pickup tube (I think this is a repro of a 71 hemi e-body pan), running stock windage tray. Old school Direct Connection chrome timing chain cover w/paper gasket & running cork oil pan gaskets. Hughes rear main seal cap...

I've read the sticky & links. I've got a 440 and am replacing the rear main seal with a viton main seal & the silicone side seals in a Hughes "cap". As many of you know, the silicone "cap side seals" really want to slide out while you're pushing the cap up/in (engine in car). Is there an...

I have dents (aka "witness marks") on my stock (Felpro?) windage tray right in the area of cylinders #3 & #4. It looks like maybe the rod bolts are touching the windage tray on those two cylinders. I've never seen this before. It's a stock stroke motor. What do I do? The only thing I can...

I've got a '70 Roadrunner 8-3/4" rear end '489 pumpkin with SS springs & a pinion snubber and 2" lowering blocks. My pinion snubber-to-floor clearance is VERY tight. I've shortened an old Direct Connection (?) box-style adjustable pinion snubber & trimmed down the rubber bumper and it's down...

I've got a couple questions about replacing the pinion seal on a 489 pumpkin 8-3/4" rear end with the pumpkin in the car. 1. Does replacing the seal mess up the pinion/ring gear lash? 2. Is there a tool you can buy to hold the pinion yoke in place while you remove the large pinion yoke nut? I...

I have an iron head 440 I built many years ago in my car now. I have exhaust manifold studs except for two holes which I installed header bolts (driver front bolt/passenger back bolt). About 2 weeks ago I started getting a little drip from the passenger/back header bolt. fyi- I don't seem...

I want to pull a couple lifters from my 440 without removing the intake manifold. I only want to take off the valve covers & rockers/shafts. The lifters are pretty low mileage, so I don't "expect" any of them to be mushroomed at the bottom. I saw this tool on ebay. What do you guys suggest...

How loud are adjustable rocker arms with a hydraulic cam? I haven't driven this car enough lately to know for sure, but mine is "sounding" like a solid lifter cam. Background: 440 with Isky ductile iron rockers & Isky pushrods Mopar "purple stripe" double springs Just set the valve lash (3/4...

I've always had good luck with Champion plugs. I went to install a new set of plugs (actually old un-used plugs I had in my garage). I noticed I have 4 plugs that are Champion RS12YC and 4 plugs that are RJ12YC. What is the difference?

I'm working on my father-in-law's "Brand X" car ('64 Chevy II Nova SS 283 2bbl.). It has no spark & I'm baffled. The car is 99% stock & is still running the original points ignition. Does anyone know a website I can find a '64 Chevy service manual? (or at least an ignition diagnostic method)...

So, I've got the valve covers off & just adjusted the valve lash. I notice that there is some coolant "weeping" out of the rear/lower valve cover bolt hole on the passenger side. Is that a cracked head? I'm "hoping" those threads just run really, really close to the head cooling jacket & I...

70 Roadrunner 4spd car --> I've had a weird sound in my car after I shut it off. Everything seems normal once it's parked & turned off, then "clunk"...…………………"clunk"...……………."clunk". It seems like it's under the car somewhere & sounds like a metal-on-metal sound which repeats about 4-5 times...

So I bought a set of "taller truck valve covers" for a big block motor pretty cheap. They are supposed to be a little taller than car valve covers. Do I get any extra oil baffle clearance? I'm trying to clear some Isky ductile iron rocker arms. I may end up stacking 2 valve cover gaskets...

Any idea what year/make/model this transmission came out of?