International 345 aluminum intake manifold That would be the c1 unit. Posted August 24, 2016. Your choices for a 345 are a two barrel intake (which you probably have), square bore or spread bore four barrel cast iron stock manifolds, or an aluminum intake made by IH Only North which may not be available any more new. horses2. Aluminum RPT Intake Square Bore (shown 1st picture) or Spread Bore (2nd picture) IH 345, 392!, Scout, Scout II, Pickup Travelall. Oct 30, 2011 · No, and nothing else other than an IH manifold will fit. 3 coats of permatex copper on a shim gasket, hylomar on the bolt threads, torqued to spec per pattern, at least for the bolts I could get a torque wrench on:icon_eek: it has developed a noticeable coolant leak on both sides of the throttle Sep 11, 2016 · The Goal: To have a streetable 320hp IH 345 that runs on pump gas, spins to 5500 RPM, and makes torque like an IH SV should! The Vehicle: 1975 Scout 2 XLC, T15d transmission, Dana 20, and unknown axle gears as of now. Mar 2, 2004 · NO aftermarket manifolds for IH motors (there were some butch 304 4-bbls made, but not any more, and of cource there are the TBI manifolds that I and others have made YES 4-bbls were avaliable factory on 345's. Aug 11, 2010 · My understanding was that the tall deck SV engines (345 & 392) had a cast iron 4 BBL intake available from IH, to where the short deck (266 & 304) only had the 2 BBL cast iron intake. I began by removing the original manifold. Will not fit 266 or 304. This is the exact manifold you will receive. IMHO the SV engines breath so poorly there's no merit to swapping to a 4-barrel. Appreciable performance gains over stock out of an IH sv8 require extensive engine modifications, which means you better have deep pockets and a hot-shit engine builder in your hip pocket. 00 May 21, 2018 · This is a basically correct statement. Feb 17, 2010 · The IH 304 was never offered with a 4bbl setup. 392 and 345 manifolds are the same. gas V-8, comes with all gaskets, new bolts and washers. Jul 30, 2008 · The rpt manifold has exactly the same coolant and vacuum penetrations machined in as the "last" generation 4v manifold that IH produced in iron. The 11 Best International 345 Aluminum Intake Manifolds (2022 reviews) Date : February 06, 2023 ; Categories : Automotive Replacement Engine Intake Manifolds. Apr 30, 2005 · I was wonderin' What's the lastest on the Aluminum Performance Intake Manifolds. So it's essentially a direct bolt-on item for the last sv applications before the motors went out of production. Factory 4 barrel intakes will fit 345's and 392's. The manifold you showed is a "spread-bore" where the secondary barrels are bigger than the primaries. If all goes to plan they should be available for initial testing early spring of next year and than sold to the general public shortly thereafter. Haven't done much with it just yet except look at it. Initial testing of the aluminum intake has shown a noticable increase in power and torque. 4 barrel square bore intake for 345 or 392 engines. Comes with matching water neck and thermostat housing, gaskets, etc. It is listed on ebay: International 345 and 392 aluminum intake manifold - ebay (item 280613204843 end time jan-17-11 15:31:40 pst) Auction ends January 17, 2011. Apr 3, 2010 · When I got my '74 Scout 9 years ago it had a 345 engine it. May 17, 2006 · I'm (patiently) waiting on their 304 manifold that'll allow use of 345 rectangular intake port heads instead of the smaller 304 square intake port heads. It will need cleaning and painting. Apr 14, 2014 · I put an aluminum intake on a 345 during a rebuild. I have no idea how many times this rig has changed hands before me. Item is located in carmichael, CA, $395. By horses2 August 24, 2016 in IH Engines. Has anyone come-up with anything for the 345\392 SV engine. IH did offer two distinct types of 4bbl manifold though a squarebore and a spreadbore. Jul 10, 2016 · Im looking for info on a 4 barrel intake manifold 345 international, around 70 - 80 model. I've got room for just 1 more aftermarket performance bolt-on, and still stay within the rules of the Truck pulling class I'm in. This is a squarebore manifold that fits Holley square bore carburetors. 95 Timing Set: 88. Trying to lift it out of the engine compartment by myself was the hard part. Aug 14, 2012 · Manifolds interchange between the 345 and 392, but will fit a 304 only if you machine a half inch or so off of each side as the 304 (and 266) have a shorter stroke and a shorter block so the V is narrower. H. Aluminum Intake Square-Bore IH 345, 392!, Scout, Scout II, Pickup Travelall 100% made in America, lightweight performance intake for your 345/392 I. To see how to drill the manifold to make it MPFI click here. Many 392s came with a 4 barrel intake and they will bolt up to a 345. May 16, 2011 · For the manifold I chose the IH Only aluminum squarebore. I'm still waiting on my intake manifold flowbench fixture. Thanks, 2 barrel intake for 266 or 304 engines. Please select finish, if unpainted, you will receive a manifold in good condition but “as removed” from a used engine. It's a nice solid piece of finely cast aluminum though. And if ya do not want to run egr, then ya need to add a blocker plate to the manifold also. $1. 95 1 1/8" Intake Manifold Freeze Plug for IH 266, 304, 345, 392 V8 Engine. It isn't from lack of octane. . This will NOT fit the 266 or 304 engines, nor can it be made to fit. Dyno testing resulted in an increase of 1 HP and a 21 pound increase in torque to the rear wheels. For the most up-to-date stock, please contact us. 304's and the less common 266's have a shorter deck height and the manifolds are different in order to compensate. Oct 22, 2003 · Only will soon be offering aluminum intake manifolds under the RPT brandname for both the 266/304 and 345/392 engines. 00 NOS - New Old Stock 345/392 4bbl Squarebore Intake Manifold. Jan 8, 2010 · The spreadbore manifold with the carter thermoquad was first introduced for some IH 345/392 on the m/y '74 pickups and travelalls. Aug 24, 2016 · IH Engines ; 345 intake manifold 345 intake manifold. Someone prior to me had adapted a GM rochester quadrajet carb onto what I later discovered was a squarebore 4bbl intake manifold, quite possibly sourced from a 392 engine. What does matter is that the correct steel shim intake manifold gaskets are used, which in your case would be for a 345. IH also used a "square-bore" where the secondaries are the same size. NO a 304 usually does not require a 4-bble manifold. any web links for this, thanks. The unbolting was the easy part. Jan 12, 2013 · 345 and 392 engines share a deck height and intake runner size, and can swap intake manifolds. Sep 5, 2007 · I purchased one a little while back (for the 345/392). The Builder Motor: 1974 SV345A block currently This is a 4BBL intake manifold to fit all 345 or 392 V8 engines used in Scout II, Travelalls, pickups, Loadstars, busses, and many other trucks in the A, B, C and D series. Good shape with no apparent issues to the casting or tapped thread areas. Check out the deal on Intake Manifold Gasket's for IH 152, 196 4cyl or 266, 304, 345, 392 V8 Engines at IH Parts America New tariffs and restrictions are affecting parts availability and price. There May be some oem Scout II produced in mid/late calendar year 1977 that also had that manifold. Currently has a smogged 304. It came undrilled for the injectors. Should 'wake up' a 304 nicely & w/a 390CFM 4bbl > might garner some nice MPG #'s too. Mar 31, 2021 · My question is should I hunt down a 345 2-barrel manifold and run the Holley 2300, run a Holley 390 cfm 4-barrel (that I think is square bore on my spread bore manifold), or get a 4-barrel spread bore carb that would match up to my original manifold? This is a 4BBL intake manifold to fit all 345 or 392 V8 engines used in Scout II, Travelalls, pickups, Loadstars, busses, and many other trucks in the A, B, C and D series. Feb 7, 2011 · If your 345 won't to the same, you've got other issues. Jan 7, 2011 · I'm selling my powder coated spreadbore aluminum intake manifold. This is a spreadbore manifold that fits spreadbore carburetors. 75 Distributor: DUI HEI-444. 95 Intake Manifold: (Could not find an aluminum intake for the 345, so I priced one for a 304)-539. But just like everything, there is room for improvement. Start new topic; Recommended Posts. Mar 9, 2010 · Now, all that saidwhen it comes to 4bbl intakes, whether they are from either variation of the 392 or a 345, it doesn't matter. I would only do it to use a Rochester Q-jet carb. They will have provisions for an EGR valve. This is a 4BBL intake manifold to fit all 345 or 392 V8 engines used in Scout II, Travelalls, pickups, Loadstars, busses, and many other trucks in the A, B, C and D series. Will not fit 345 or 392. 95 Camshaft: Isky Performance-179. So this intake if heavy cast iron came from either a 345 or more likely a 392 if a square bore. $450. Kirks' earlier post has a (now dead) link to one of the aluminum 4 BBL intakes that was created by one of the light line dealers. Nov 16, 2009 · 1979 International 345: (All pricing sourced via IHOnly's website, if there are more cost effective places out there, please let me know) Headers: Stans-442. oeyoqv qggo tssfat rpvgpw cffg htkh pjozgncm tkjfv vwwf qqk irrxpb xsyn qmjuf jisco hfwvim