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I am looking for a 455 and found one on offer up from 1973 Delta 88. What are the chances it will have bolt holes for the clutch linkage? Does anyone have a picture of a block with the holes that I can share with the seller? TIA
The hole will be difficult to see with that engine in the car. In the photo below, the Z-bar pivot ball threads into the hole indicated by arrow "A". Do not be confused by the hole at arrow "B", that is used for the starter brace. The easiest thing to do is to check the casting number on the block. If it is an F block, it will have the hole tapped. If it is an FA block, it is unlikely to have the hole, but there ARE documented FA blocks that have it drilled and tapped. And while nearly all 1973-76 455s are FA blocks, there are a few that areF blocks. I have an Fblock with a 1973 VIN derivative stamp in my shop right now.
I am still waiting to hear from the seller. If it ends up being an Fa motor I am still wondering if it might be worth buying. This is for a 1977 260 swap. Will the exhaust manifolds work with dual exhaust? I will also need a carburetor, starter, distributor, sheet metal and possible PS pump and brackets?
Not so sure that is a '73 if it matters. Can't see an EGR valve but the picture
isn't the best angle, the oil fill tube looks like an earlier breather style, no PCV valve, the fuel pump doesn't look correct and IIRC it should be blue in color.
I am still waiting to hear from the seller. If it ends up being an Fa motor I am still wondering if it might be worth buying. This is for a 1977 260 swap. Will the exhaust manifolds work with dual exhaust? I will also need a carburetor, starter, distributor, sheet metal and possible PS pump and brackets?
The small block exhaust manifolds will bolt up to a 455, but that's a REALLY bad idea. Between the port mismatch and the crappy manifold design, it's like trying to breath with one finger stuck up your nose. Either get correct headers or the correct W/Z exhaust manifolds for a BBO. The W/Z manifolds have individual internal runners for better flow.
You picture does help. I'm not in anyway criticizing you or your post. Sorry if my post was taken as criticism I was trying to point out info about the engine picture provided by the the OP, not your engine/picture.
Last edited by Sugar Bear; Sep 17, 2020 at 06:11 PM.
The small block exhaust manifolds will bolt up to a 455, but that's a REALLY bad idea. Between the port mismatch and the crappy manifold design, it's like trying to breath with one finger stuck up your nose. Either get correct headers or the correct W/Z exhaust manifolds for a BBO. The W/Z manifolds have individual internal runners for better flow.
Thank you for the reply. Seller wants almost the same amount for this complete engine for what W/Z manifolds go for. I do not know jack about these manifolds. The big question is are they externally the same? Being that this swap will be adding 175% more CID will another few % using the W/Z manifolds be worth the money they cost? This will be a driver not a race car.
Not so sure that is a '73 if it matters. Can't see an EGR valve but the picture
isn't the best angle, the oil fill tube looks like an earlier breather style, no PCV valve, the fuel pump doesn't look correct and IIRC it should be blue in color.
Good luck!!!
Well that could work in my favor. Waiting on casting photos from seller.
Thank you for the reply. Seller wants almost the same amount for this complete engine for what W/Z manifolds go for. I do not know jack about these manifolds. The big question is are they externally the same? Being that this swap will be adding 175% more CID will another few % using the W/Z manifolds be worth the money they cost? This will be a driver not a race car.
The 260 manifolds are not even close to being the same. The only thing that matches up is the bolt pattern. Ports are TINY. Flow is dismal. The flow disruption at the port mismatch will make the engine run like crap. W/Z manifolds are like $300 for repros. Get them.
The 260 manifolds are not even close to being the same. The only thing that matches up is the bolt pattern. Ports are TINY. Flow is dismal. The flow disruption at the port mismatch will make the engine run like crap. W/Z manifolds are like $300 for repros. Get them.
Joe, I am not planning on using the SBO exhaust manifolds. Seller wants $400 for the 455 engine with 1973 Delta 88 manifolds on it. I am guessing they will not be W/Z manifolds but are BBO manifolds. I was asking if the engine would be worth buying for the manifolds even if it is a Fa motor and I need everything at this point.
Joe, I am not planning on using the SBO exhaust manifolds. Seller wants $400 for the 455 engine with 1973 Delta 88 manifolds on it. I am guessing they will not be W/Z manifolds but are BBO manifolds. I was asking if the engine would be worth buying for the manifolds even if it is a Fa motor and I need everything at this point.
Sorry, I misunderstood. The 73 motors typically came with X/Z manifolds. That X manifold is equivalent to the W manifold and flows just as well. It is also internally divided into internal runners.
Not so sure that is a '73 if it matters. Can't see an EGR valve but the picture
isn't the best angle, the oil fill tube looks like an earlier breather style, no PCV valve, the fuel pump doesn't look correct and IIRC it should be blue in color.
Sorry, I misunderstood. The 73 motors typically came with X/Z manifolds. That X manifold is equivalent to the W manifold and flows just as well. It is also internally divided into internal runners.
Okay thanks. Now I just need the seller to come through.
...and a '75 or newer "Mod Quad" carb. Some of the '75 carbs kinda sucked, but the '76 and newer (up to the point of mixture control solenoids) were excellent.
I get the sense that the seller wants so little for this engine that you should JUMP ON IT.
Last edited by Schurkey; Sep 21, 2020 at 12:30 AM.
