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Search found 13 matches

by donsboy
Mon Sep 14, 2020 6:56 pm
Forum: Engine Tech
Topic: Help with 312 old y block Thunderbird engine.
Replies: 8
Views: 417

Re: Help with 312 old y block Thunderbird engine.

The head is off and there's no flow? Clogged oil galley?
by donsboy
Wed Aug 05, 2020 6:47 pm
Forum: Engine Tech
Topic: Old trick flow heads
Replies: 2
Views: 306

Old trick flow heads

I found a set of cast iron trick flow heads from the early 90s. They were never put in service. They are bare castings. I believe they are set up for 1.94/1.6 valves with 8 mm stems. Should i use them on a street 392W or sell them and look for aluminum heads. I'm trying to build a hi10/ low 11 sec s...
by donsboy
Fri May 15, 2020 4:39 pm
Forum: Engine Tech
Topic: Flat tappet vs roller
Replies: 38
Views: 2546

Re: Flat tappet vs roller

First...why would you pay 800.00 got Ford link bar roller lifters. I sell American made lifters for 550.00 retain all day long. Second...why does a motor with link bar lifters need a retrofit roller? I did a quick google search for lifters and thats the price I found. Havent researched them properl...
by donsboy
Tue May 12, 2020 8:12 pm
Forum: Engine Tech
Topic: Flat tappet vs roller
Replies: 38
Views: 2546

Re: Flat tappet vs roller

Havent decided on any of that yet. Will a low use hot rod benefit enough to justify the cost
by donsboy
Tue May 12, 2020 7:27 pm
Forum: Engine Tech
Topic: Flat tappet vs roller
Replies: 38
Views: 2546

Flat tappet vs roller

Good afternoon gentlemen. I'm bored silly during this pandemic and found some free parts on Facebook. I'm going to build this sbf for the street nothing radical just good street performance. Is it worth the cost to convert to hydraulic roller lifters? Is there enough performance gain to spend $800+ ...
by donsboy
Tue Jun 12, 2018 8:02 pm
Forum: Engine Tech
Topic: A dream part you wish for!
Replies: 80
Views: 8176

Re: A dream part you wish for!

4 valve heads with variable valve timing for the bbf.
by donsboy
Sat Aug 26, 2017 9:29 am
Forum: Engine Tech
Topic: Best engine for a Q-ship?
Replies: 45
Views: 6893

Re: Best engine for a Q-ship?

Mn12 thunderbird or cougar. IRS. Comfy long distance cruiser. Stroker 4v 4.6 swap with twins and a 5 or 6 spd swap would be big fun.
by donsboy
Tue Aug 09, 2016 8:25 pm
Forum: Engine Tech
Topic: Injector placement
Replies: 26
Views: 2490

Re: Injector placement

The injector is usually mounted straight up. It may not be square but these injectors are mounted visibly canted toward the center of the engine not pointed to the intake valve at all. Will this make the engine more susceptible to build up on the intake valve? Or more susceptible to fuel pudding or ...
by donsboy
Tue Aug 09, 2016 6:24 pm
Forum: Engine Tech
Topic: Injector placement
Replies: 26
Views: 2490

Injector placement

I saw a homemade fuel injection setup for a 390 ford using a 351c tunnel ram. The owner has the injectors tilted for clearance instead of square to the intake runner. Will this affect performance? Everyone I've ever seen including stock is square to the runner. Is there a reason?
by donsboy
Sun Sep 22, 2013 8:54 pm
Forum: Engine Tech
Topic: 5.0, CFI. Any proven mods for MPG's?
Replies: 29
Views: 3048

Re: 5.0, CFI. Any proven mods for MPG's?

how did grandma only get 12mpg in a 974.6 cougar? was the od turned off or was she driving in 2nd gear. i had one that got 30mpg on the highway and even at 200K miles was still good for low 20's. and you are replacing this car with an 85 cfi grand marquis?
by donsboy
Mon Jul 08, 2013 10:26 am
Forum: Engine Tech
Topic: long rod engines
Replies: 68
Views: 5110

Re: long rod engines

Is the extra expense of a custom piston worth it in a stock stroke street 351w about 400hp?
by donsboy
Sat Jul 06, 2013 9:44 pm
Forum: Engine Tech
Topic: long rod engines
Replies: 68
Views: 5110

Re: long rod engines

thank you gentlemen.i was not relishing the idea of building two 351w just to find out. those things can get expensive in a hurry.
by donsboy
Sun Jun 30, 2013 1:52 pm
Forum: Engine Tech
Topic: long rod engines
Replies: 68
Views: 5110

long rod engines

Hello gentlemen. ive been lurking here for a bit now and i have a question. if i build two engines identically except for rod length which will perform better? i mean they balance the same (rod and piston weights are equal) same ring package same compression ratio (identical piston shape and chamber...