CRG Discussion Forum

Camaro Research Group Discussion => Originality => Topic started by: DT on June 30, 2012, 02:21:03 PM

Title: 1969 original alternator.... 37 amp ??
Post by: DT on June 30, 2012, 02:21:03 PM: What alternator (part #) came originally on a Big Block car?? 37A or 61A ??? Thx
Title: Re: 1969 original alternator.... 37 amp ??
Post by: JohnZ on June 30, 2012, 02:43:11 PM: Quote from: DT on June 30, 2012, 02:21:03 PM
What alternator (part #) came originally on a Big Block car?? 37A or 61A ??? Thx

1100834, 37 amp.
Title: Re: 1969 original alternator.... 37 amp ??
Post by: DT on June 30, 2012, 03:36:37 PM: Thank you very much John!
Title: Re: 1969 original alternator.... 37 amp ??
Post by: william on June 30, 2012, 03:57:53 PM: "Big Block" is a generic term.

The standard alternator for L34 [350 hp] and L35 [325 hp] was the 1100834.

Optional 42 amp [K79] was 1100842; 61 amp [K85] 1100849.

All special high performance BBs [L78, L72, ZL1] used 1100837 37 amp with the deep-groove pulley.
Title: Re: 1969 original alternator.... 37 amp ??
Post by: DT on June 30, 2012, 04:59:57 PM: Thank you William!
Title: Re: 1969 original alternator.... 37 amp ??
Post by: mickeystoys69RSSS on June 30, 2012, 07:51:06 PM: You also had to distinguish between A/C and Non-A/C big blocks for the L34 350HP and L35 325 HP cars. The standards 37A was used on non-A/C cars and the 42A alt was standard use for the A/C cars unless the 61A was also special ordered. The L78 cars did not have A/C as an option that I am aware of.