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12-28-2005, 07:35 AM
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#1 |
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Senior Member
Join Date: Jul 2005
Location: confusion
Posts: 184
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efi 306 transplant into my '77 onefifty
most every one looked @ my previous post backfire through carb
i am going to chunk that 400 cubic inches worth of crap into the junk yard new idea , it seems that i have an extra built efi 306 hanging around and a wireing harness, ecm ... hmmm i wonder if that will be enough to motivate my truck , it has 4 inch suspention lift, 33x12.50 , new process (granny 4 speed) 4.10 or so final drive ...
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'89 LX 5.0 Hatchback (light blue metallic) t-5 ,traction lock ,high volume fuel pump underdrive pulleys, chip NEEDS MORE COWBELL |
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12-28-2005, 07:50 AM
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#2 |
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3v's are slow
Join Date: Dec 2004
Location: Here and There
Posts: 17,152
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Re: efi 306 transplant into my '77 onefifty
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2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP  2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy |
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12-28-2005, 08:34 AM
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#3 |
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Senior Member
Join Date: Jul 2005
Location: confusion
Posts: 184
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Re: efi 306 transplant into my '77 onefifty
so you think that will pull good enough for a truck , i figure the gearing will do most of the work ...
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'89 LX 5.0 Hatchback (light blue metallic) t-5 ,traction lock ,high volume fuel pump underdrive pulleys, chip NEEDS MORE COWBELL |
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12-28-2005, 08:52 AM
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#4 | |
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Friends
Join Date: Dec 2004
Location: Tempe Arizona
Posts: 3,029
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Re: efi 306 transplant into my '77 onefifty
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2020 Range Rover Sport HSE P525 Dynamic - Firenze Red - Supercharged 5.0 - 518 HP SOLD - 2010 Camaro SS [/B] - Featured in GM High Tech Performance and Camaro Now Magazines - http://www.superchevy.com/features/g...of-perfection/ |
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12-28-2005, 09:51 AM
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#5 |
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Senior Member
Join Date: Jul 2005
Location: confusion
Posts: 184
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Re: efi 306 transplant into my '77 onefifty
problem ...bellhouseing cant find one and dont know if a smallblock houseing even exists for this tranny "NP435" HMMM
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'89 LX 5.0 Hatchback (light blue metallic) t-5 ,traction lock ,high volume fuel pump underdrive pulleys, chip NEEDS MORE COWBELL |
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12-28-2005, 12:03 PM
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#6 |
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Administrator
Join Date: Dec 2004
Location: Huntsville, AL
Posts: 14,774
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Re: efi 306 transplant into my '77 onefifty
With 33's you may still need more gear. A friend of mine had a '93 Blazer with 35s on it and he actually got better gas mileage with 4.56s than he did with 4.10s, plus the truck drove a lot better.
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1998 Mustang GT Coupe - World's Slowest Racecar 2005 Toyota 4Runner SR5 V8 2013 Volkswagen Jetta Sportwagen TDI |
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12-28-2005, 12:48 PM
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#7 |
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Senior Member
Join Date: Jul 2005
Location: confusion
Posts: 184
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Re: efi 306 transplant into my '77 onefifty
i guess we will see how it acts when i get the 306 in there
the main thing i was wondering about was if the 306 would have enough torque to do the truck justice but a great running small block would have to be better than a 400 that skips like a stone burns oil and leaks every where. also the efi would not have any flat spots when climbing hills and maybe would be easier on gas ... it wouldnt be that great for towing...any way ive though about dropping it back down 2 inches and running smaller tires
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'89 LX 5.0 Hatchback (light blue metallic) t-5 ,traction lock ,high volume fuel pump underdrive pulleys, chip NEEDS MORE COWBELL |
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12-28-2005, 12:55 PM
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#8 | |
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Senior Member
Join Date: Dec 2005
Location: The conservative underground
Posts: 341
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Re: efi 306 transplant into my '77 onefifty
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I have put a few small blocks in place of 351Ms and 400s, I used to get bell housings from 300 6cyl pick ups and vans with 3 speeds. These bell housings worked fine with NP 4 speeds and were plentiful, They did build some 351w powered F150s 4X4s with a NP, How I found the applications for the bell housing is with a Hollander Xref. On a side note the mounting pattern on the transmission case stayed the same for the NP 4 speeds, The bell housings I was using had 2 sets of trans. mounting bolts which were both the wide and narrow bolt patterns. |
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12-28-2005, 01:28 PM
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#9 | |
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5.0 Block/Walnut Cracker
Join Date: May 2005
Location: Working....
Posts: 2,409
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Re: efi 306 transplant into my '77 onefifty
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'14 Dodge Challenger SRT8 392 6-speed |
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12-28-2005, 09:37 PM
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#10 | |
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Senior Member
Join Date: Dec 2005
Location: The conservative underground
Posts: 341
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Re: efi 306 transplant into my '77 onefifty
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LOL I am spending my vaction at home with round 3 of the flu. |
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