400 max oversize

#1 · December 12, 2022, 5:30 pm

Is the 400 the same as the 351 with the max safe oversize piston being. +.030?

#2 · December 19, 2022, 5:14 pm

We sell 4.060" pistons & have never seen an issue.

#3 · December 30, 2022, 8:04 pm

Quote from Ed Thompson on December 30, 2022, 8:04 pm

Hello Tim,

My name is Ed Thompson. I emailed you about a year ago about my plan to convert a 351m to 400 cu.in. I have been delayed a while with other projects but have cleared those out of the way and am ready to put new life in my baby ('78 f150 4x4). I have disassembled the engine and had my machinist clean the block and heads and check for cracks, and measure the cylinders for wear and he says the wear is no more than 6 thousands. He says .20 over is where he can bore and hone the cylinders. I would like to have around 300-350 h.p. and 400+ ft. lbs. torque. Most of my driving will be highway with very occasional towing. So I intend to use an RV grind cam. One of my most important goals is to have an engine that does not have detonation issues. Can I use my stock heads?

I would like to order all of the parts to do a complete rebuild from you. Including rotating assembly, cam, timing set, harmonic balancer, head parts, intake manifold, distributor, and miscellaneous other parts. I would like to talk to you about running a roller cam and roller rockers. Are there power gains to be had doing this? I don't intend to run higher rpms. So a conversation with you would be greatly appreciated. Thank you in advance.

I am sending one of your older posts from Ford Enthusiasts Forum that is very similar to what I want to achieve although I assume there have been upgrades to the list of parts you show in the following post. The date that this was posted was 2013.

400 Kit FYI

Let me tell you a little about our kits.
After selling and building 400's for many years now, we have developed a "formula" that out of the box make 340 HP and 440 TQ. With options it goes up from there. We have tweaked the component of the kit over the years.
Here's what our get:
TMeyer 400 piston that will give you about 9.3:1 C/R
Hasting ring set.
ACL aluminum rod and main bearings
TMeyer grooved cam bearings
Lunati camshaft
hyd lifters
roller chain
oil pump
Brass expansion plug set
gasket set and intake gasket
Springs, retainers and locks to match the camshaft
assembly lube, ZDDP oil additive and plastigauge
We get about $911 for everything.
I will bet if you buy everything in our kit on-line from the big part stores, it will be tough to match this price.
We email customers a spreadsheet that outlines all the parts and the options that they can also choose.
To date I think we have sold about 5000-6000 pistons.

Now the bad news...we are out of pistons for a couple months.

I look forward to talking to you.

My #360-301-1931

Thanks again,

Ed Thompson

ReplyForward

Hello Tim,

My name is Ed Thompson. I emailed you about a year ago about my plan to convert a 351m to 400 cu.in. I have been delayed a while with other projects but have cleared those out of the way and am ready to put new life in my baby ('78 f150 4x4). I have disassembled the engine and had my machinist clean the block and heads and check for cracks, and measure the cylinders for wear and he says the wear is no more than 6 thousands. He says .20 over is where he can bore and hone the cylinders. I would like to have around 300-350 h.p. and 400+ ft. lbs. torque. Most of my driving will be highway with very occasional towing. So I intend to use an RV grind cam. One of my most important goals is to have an engine that does not have detonation issues. Can I use my stock heads?

I would like to order all of the parts to do a complete rebuild from you. Including rotating assembly, cam, timing set, harmonic balancer, head parts, intake manifold, distributor, and miscellaneous other parts. I would like to talk to you about running a roller cam and roller rockers. Are there power gains to be had doing this? I don't intend to run higher rpms. So a conversation with you would be greatly appreciated. Thank you in advance.

I am sending one of your older posts from Ford Enthusiasts Forum that is very similar to what I want to achieve although I assume there have been upgrades to the list of parts you show in the following post. The date that this was posted was 2013.

400 Kit FYI

Let me tell you a little about our kits.
After selling and building 400's for many years now, we have developed a "formula" that out of the box make 340 HP and 440 TQ. With options it goes up from there. We have tweaked the component of the kit over the years.
Here's what our get:
TMeyer 400 piston that will give you about 9.3:1 C/R
Hasting ring set.
ACL aluminum rod and main bearings
TMeyer grooved cam bearings
Lunati camshaft
hyd lifters
roller chain
oil pump
Brass expansion plug set
gasket set and intake gasket
Springs, retainers and locks to match the camshaft
assembly lube, ZDDP oil additive and plastigauge
We get about $911 for everything.
I will bet if you buy everything in our kit on-line from the big part stores, it will be tough to match this price.
We email customers a spreadsheet that outlines all the parts and the options that they can also choose.
To date I think we have sold about 5000-6000 pistons.

Now the bad news...we are out of pistons for a couple months.

I look forward to talking to you.

My #360-301-1931

Thanks again,

Ed Thompson

ReplyForward