FT Block

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Mar 30, 2001 | 11:04 PM

pntrbil

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FT Block

Same boneyard but in the truck area is an FT block. Mirror image 105 on it. The pistons are stamped .030 but I haven't measured the bore yet. I know I'll be fine if they're 4 inch pistons but if they're 4.050 plus the .030 and then need cleanup ... will I be SOL?

I like TRW's forged stuff BTW.

Bill, the Skinny Painter

Mar 31, 2001 | 01:52 AM

karljay

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Joined: Jul 2000

Posts: 2,281

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From: Northern California

FT Block

Not only is 30 over ok, but SOME FT blocks can go 80 over! The 105 block is USUALLY a choice block, some aren't but most are. You'll have to look at the main bearing webbing and see if you have and extra 'finger' supporting the main bearing. I think the standard is two and the better is three.

I run a standard FE block 60 over, which most all will do. going 80+ over should be sonic checked first for wall thickness. I run the L2291F forged pistons so you'll have no trouble getting pistons for 60 over or if you want/can 80 over.

By the way, I hope you get the 428 crank (you lucky dog)! I called around for about six months to find mine.

Mar 31, 2001 | 07:47 AM

pntrbil

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FT Block

I'm on pins and needles over that crankshaft. Can't go check it today but I'll be after it tomorrow.

Thanks for the FT info.

Apr 10, 2001 | 11:30 AM

jspegg

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FT Block

[font size="1" color="#FF0000"]LAST EDITED ON 10-Apr-01 AT 12:57 PM (EST)[/font][p]Hey Guys I got a question I noticed yall talking about the 105 stamped on the front of the block and you are calling this an FT block.I noticed mine is the same way I guess that means I dont have a FE block.Could you tell more about this FT block I have like what years they were made and also do they have the same oiling problems that the FE's have like small oil passages that have to be bored bigger.what is the difference between the two blocks.Any info you could give would help.Also I have been told that my heads are FE heads would there be any problem having these FE heads on a FT block.

Apr 10, 2001 | 09:45 PM

Ratsmoker

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Joined: Feb 2001

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From: Missouri

FT Block

FT blocks were used in big trucks and were named the 332, 361 aand 391. I also have the 105 block and its not exactly an FT block as far as I know. I believe the FT block has larger main and rod journals. I also believe that ford started using the 105 blocks in 73-74 in the pickups. Someone let me know if I am incorrect. I do know that it does have the FT cylinder wall thickness and it definitely does share the FE oiling problems. Any part from a stock FE block will bolt right in to a 105 block. And for the original poster Summit sells TRW forged pistons that will put your compression up to at least 9.45:1 depending on your heads for 30 bucks a pop. Rings not included.

Apr 10, 2001 | 09:52 PM

dinosaurfan

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Joined: Aug 2000

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From: SW Michigan

FT Block

starting around 1974, ford had more FT blocks than they needed and some of them were used in FE trucks. These may be machined as FEs or they may have a bronze bushing were the distributer goes. The FT has the same oiling as the FE and the same bolt patterns, so if you do have the FT block, your FE heads will be fine. The heavy duty FT block casting is more desirable anyway. DF

Apr 10, 2001 | 09:57 PM

jspegg

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Joined: Dec 2000

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FT Block

Whenever I go to rebuild can I get a rebuild kit for a 390 or what.My truck is a 1973 f100 and I belive it is a 390 So will Can I just get a rebuild kit for a 73 390.Are the internal parts the same will they inerchange.