Swap 318 TBI to 4 barrel ???

From : rjs

Q: my son wants to convert my old 90 ramcharger 318 w/ tbi auto tranny over to a 4 barrel. ive got a nice old 340 intake a brand new small carter 4 barrel and a nearly new electronic distributor w/ vacuum adv. install the hardware and then we are thinking to eliminate the computer entirely and run a pressure regulator on the fuel line. am i overlooking anything or walking into something that could be a big pain in the butt any advice would be greatly appreciated. -- your favorite stores helpful shopping tools and great gift ideas. experience the convenience of buying online with shop@netscape! http//shopnow.netscape.com/ .

Replies:

From : tbone

that is going to be some regulator to drop pressure that low. if it is an external pump i would replace it with one for a carb. be careful where you live some states like nj and nc will fail you in inspection for these types of mods even if the vehicle could pass the test. -- if at first you dont succeed youre not cut out for skydiving my son wants to convert my old 90 ramcharger 318 w/ tbi auto tranny over to a 4 barrel. ive got a nice old 340 intake a brand new small carter 4 barrel and a nearly new electronic distributor w/ vacuum adv. install the hardware and then we are thinking to eliminate the computer entirely and run a pressure regulator on the fuel line. am i overlooking anything or walking into something that could be a big pain in the butt any advice would be greatly appreciated. -- your favorite stores helpful shopping tools and great gift ideas. experience the convenience of buying online with shop@netscape! http//shopnow.netscape.com/ .

From : bruce grantrjs

friery@hotmail.com says... i recently purchased a 1975/76 29 vogue mh. everything works except the transmission. the previous owner claims it worked when he last drove it about 5 years ago. i am pretty certain that this has the 440 engine with the 727 trans. does anyone have any suggestions on where i should start in problem solving this tranny. i checked the linkage and the shifter and it seems to be fine. it has tranny fluid in it and it is pink in color. i am hoping that it is something simple to fix and that i dont have to have it towed or pull the tranny myself to take it fixed. any help you can give me would be greatly appreciated. thanx in advance jamie. you say the fluid is pink in color it should be red! pink indicates that there is water or worse coolant in it. you may be in for a rebuild. -- bruce grant westminster md 95 2500 club 4x4w/dynatrac manual hubs cummins/auto 265/70rx19.5g .

From : rjs

it shouldnt be a problem. the tbi system is only around 14-15 psi and i need to knock it down to around 7psi. tbone wrote that is going to be some regulator to drop pressure that low. if it is an external pump i would replace it with one for a carb. be careful where you live some states like nj and nc will fail you in inspection for these types of mods even if the vehicle could pass the test. -- your favorite stores helpful shopping tools and great gift ideas. experience the convenience of buying online with shop@netscape! http//shopnow.netscape.com/ .

From : budd cochran

in reality you have bigger problems along with the emissions testing tom mentioned. 318 heads are small valve heads and the camshaft isnt very aggressive . . its almost a broomstick. if youre expecting a noticeable performance increase it probably wont happen. small valves and a small cam will keep the intake flow restricted. my suggestion would be if you really want 4-bbl performance is to get a rebuildable 360 for that manifold and carb. youll need the 360s truck engine brackets mounts and an externally balanced torque converter or a prebalanced b&m flexplate for your application. -- budd cochran it shouldnt be a problem. the tbi system is only around 14-15 psi and i need to knock it down to around 7psi. tbone wrote that is going to be some regulator to drop pressure that low. if it is an external pump i would replace it with one for a carb. be careful where you live some states like nj and nc will fail you in inspection for these types of mods even if the vehicle could pass the test. -- your favorite stores helpful shopping tools and great gift ideas. experience the convenience of buying online with shop@netscape! http//shopnow.netscape.com/ .

From : budd cochran

as red says it used the 360 4-bbl cam but you can if you use the 360 heads slip a 340 magnum cam in or any decent streetable aftermarket cam. the truck manifolds arent as bad as some of the passenger car manifolds but a set of headers would be better yet. -- budd cochran yeah the heads. i forgot to mention them. he has the 318 heads off valve freshening . ive got a set of 360 heads and am thinking he should do the valves on them instead. then the intake ports would match the manifold. just out of curiosity what kind of heads/cam did the factory 318 4 barrel motors of the 80s have emissions testing/inspection wont be a problem as it is not done here. budd cochran wrote in reality you have bigger problems along with the emissions testing tom mentioned. 318 heads are small valve heads and the camshaft isnt very aggressive . .. its almost a broomstick. if youre expecting a noticeable performance increase it probably wont happen. small valves and a small cam will keep the intake flow restricted. my suggestion would be if you really want 4-bbl performance is to get a rebuildable 360 for that manifold and carb. youll need the 360s truck engine brackets mounts and an externally balanced torque converter or a prebalanced b&m flexplate for your application. -- budd cochran it shouldnt be a problem. the tbi system is only around 14-15 psi and i need to knock it down to around 7psi. tbone wrote that is going to be some regulator to drop pressure that low. if it is an external pump i would replace it with one for a carb. be careful where you live some states like nj and nc will fail you in inspection for these types of mods even if the vehicle could pass the test. -- your favorite stores helpful shopping tools and great gift ideas. experience the convenience of buying online with shop@netscape! http//shopnow.netscape.com/ -- your favorite stores helpful shopping tools and great gift ideas. experience the convenience of buying online with shop@netscape! http//shopnow.netscape.com/ .

From : nosey

yeah the heads. i forgot to mention them. he has the 318 heads off valve freshening . ive got a set of 360 heads and am thinking he should do the valves on them instead. then the intake ports would match the manifold. just out of curiosity what kind of heads/cam did the factory 318 4 barrel motors of the 80s have emissions testing/inspection wont be a problem as it is not done here. read this http//www.allpar.com/mopar/318.html .

From : redneck tookover hell

just out of curiosity what kind of heads/cam did the factory 318 4 barrel motors of the 80s have 360 a dyslexic man walks into a bra. .