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308 build suggestions


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#26 Ice

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Posted 21 August 2020 - 04:59 PM

To big imho cuts in to late id be looking at something like 2100 to 5000 rpm
dont need histall and will give plenty of power for a mild 308 engine

each to there own

#27 yel327

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Posted 21 August 2020 - 05:03 PM

I’d still say forget flat tappet, go hydraulic roller. Costs a bit more for lifters and the cam, Crow sell well priced rockers. But will make it a different engine.

#28 rexy

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Posted 23 August 2020 - 12:27 PM

Best simple street combo for a B cast style headed 308 is flat tops and a cam with about 230 @ 50 duration. So about a Crane 286. A Performer manifold, 650 holley or well set up Quady, and a good exhaust with exctractors. You are looking at around 300hp and it will be reliable and reasonably economical and enough power to have a bit of fun with.


I had this combo in the old LX as my daily driver for ten years. Excellent street combo that I drove in heavy city traffic and long highway trips without missing a beat.

While a hydraulic roller is a very nice thing it’s not necessary for what you want and offers no real advantage for its extra cost over a good old hydraulic flat tappet cam for your application.



#29 _Lazarus_

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Posted 24 August 2020 - 08:51 AM

The 286 has a very good reputation for a street cam. Did you see this thread - 

 

 

http://www.gmh-toran...and-hp-figures/



#30 _JJ21_

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Posted 25 August 2020 - 09:42 AM

Thanks guys.
So Rexy what trans/stall did you have behind this combo?

#31 rexy

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Posted 26 August 2020 - 12:38 AM

Initially had a steel case celica box (fantastic shift feel) followed by a supra 5 speed.

Rear end was initially a banjo. This motor broke a 3.08 crown wheel and pinion and then a couple of axles. After trialling some 3.36 banjo gears I bit the bullet and put a 3.5 LSD nine inch in it.

 

Your auto will be easier on the rear end. If you like cruising a relatively small converter should be ok.






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